rf4287 series service manual

7/21/2019 RF4287 Series Service Manual

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BOTTOM MOUNT FREEZER

MODEL NAME : RF4287HARSRF4287HAPNRF4287HAWPRF4287HABP

MODEL CODE : RF4287HARS/XAARF4287HAPN/XAARF4287HAWP/XAARF4287HABP/XAARF4287HARS/XAC

REFRIGERATOR

REFRIGERATOR CONTENTS

1. PRECAUTIONS(SAFETY WARNINGS)6

2. PRODUCT SPECIFICATIONS 10

3. DISASSEMBLY AND REASSEMBLY 27

4. TROUBLESHOOTING56

5. EXPLODED VIEW & PARTS LIST 105

6. PCB DIAGRAM 122

7. WIRING DIAGRAM

127

8. SCHEMATIC DIAGRAM 131

For the latest parts information, Please access to our service web site( North America : http://service.samsungportal.com)



Contents

1. Precautions(Safety Warnings)6

2. Product Specifications 10

2-1) Introduction of main function112-2) Specifications 132-3) Interior Views 142-4) Model Specification &Specification Chart 152-5) Dimensions of Refrigerator (Inches) 182-6) Optional Material Specification192-7) Refrigerant Route in Refrigeration cycle20

2-7-1.Principle of freezeer212-7-2.Operation theory of refrigeration cycle components 222-7-3.Refrigeration Cycle Type25

2-8) Cooling Air Circulation 26

3. Disassembly and Reassembly 273-1) PRECAUTION283-2) Refrigerator Door 293-3) Door Handle Freezer 313-4) Door Handle Freezer & Flex zone 323-5) Refrigerator Light 333-6) Cover-Display & Water-Dispenser 333-7) Water-Dispenser343-8) Glass Shelf 353-9) Foldable Glass Shelf 363-10) Vegetable & Fruit Drawers Shelf 363-11) Case Water 373-12) Case Water Filter 383-13) Water Tank 393-14) Motor Damper 413-15) Water Filter (Assembly & Disassembly) 423-16) Vertical Hinged Section 433-17) Evaporator Cover In Refrigerator 443-18) Evaporator In Refrigerator 45

3-19) Freezer Door463-20) Convertible Door 473-21) Flex Zone Door483-22) Ice-Maker 493-23) Flex Zone Light503-24) Freezer Light503-25) Side Light 513-26) Door Switch In Freezer 513-27) Evaporator Cover In Freezer 523-28) Evaporator In Freezer 523-29) Machine Compartment533-30) Electric Box 55

4. TROUBLESHOOTING 564-1) Function for failure diagnosis 57

4-1-1. Test mode (manual operation / manual defrost function)574-1-2. Display function of Communication error 584-1-3. Self-diagnostic function 594-1-4. Display function of Load condition 624-1-5. Exhibition mode setting function 634-1-6. Option setting function 644-1-7. Option TABLE 66

4-2) Diagnostic method according to the trouble symptom(Flow Chart) 674-2-1. If the trouble is detected by self-diagnosis 694-2-2. If FAN does not operate80



Contents

4-2-3. If ICE Room Fan does not operate 814-2-4. If FAN does not operate (Flex Room - FAN) 824-2-5. If Ice Maker does not operate 83

4-2-6. If defrost does not operate (F,R DEF Heater) 844-2-7. If Power is not supplied 854-2-8. If compressor does not operate 864-2-9. When alarm sounds continuously without stop(related with buzzer sound) 884-2-10. If Mid Drawer Panel PCB does not work normally 904-2-11. When refrigerator ROOM Lamp does not light up 914-2-12. If ICE Water is not supplied924-2-13. If Cubed or Crushed Ice is not supplied 934-2-14. If Cover Ice Route Motor(Geard Motor) is not working normally 944-2-15. If Inverter PCB Power is not supplied 954-2-16. LED blinking frequency depending on protecting functions 96

Spm internal diode voltage 97Inverter controller board connector location 98Inverter pcb circuit diagram 99

4-3-1. inrush current protecting circuit 1004-3-2. power source(hybrid ic) 100

4-3-3. location sensing resistance area 1014-3-4. sensing current area1014-3-5. comp operating signal area1024-3-6. bootstrap charging area 102

5. Exploded View & PARTS LIST 1035-1) Freezer 1045-2) Refrigerator 1065-3) Cabinet 1095-4) Disassembly of Door Refrigerator L 1125-5) Disassembly of Door Refrigerator R1135-6) Disassembly of Door freezert1165-7) Disassembly of Flex Zone Door118

6. PCB DIAGRAM120

6-1) PCB Layout with part position 1216-2) PCB Layout with part position (Inverter Board) 1226-3) Connector Layout with part position (Main Board) 123

6-3-1. RF4287HA** 1236-4) Connector Layout with part position (Inverter Board)124

6-4-1. RF4287HA** 124

7. WIRING DIAGRAM 1257-1) Model : RFG295AA**[BETTER]1257-2) Model : RF4287AA**[BEST] 1267-3) Model : RFG299AA**[7" LCD] 1277-4) Model : RFG294AA**[SEARS] 128

8. SCHEMATIC DIAGRAM 1298-1) Whole block diagram 129

8-1-1. MAIN BLOCK(RF4287**)129

8-1-2. INVERTER BLOCK(RF4287***)1308-2) CIRCUIT DIAGRAM131

8-2-1. MAIN 1318-2-2. INVERTER132



6

1. PRECAUTIONS(SAFETY WARNINGS)

Unplug the appliance before the changing or repairing the electric parts.

Be careful the electric shock.

When exchanging the parts, use the correct parts.

Check the model name, rating voltage, rating current, running

temperature symbols.

When troubleshooting, connect firmly the types of harness.

Make not to be separated when some power is imposed.

Check the traces of water infiltration at the electric parts.

If there is a trace of water infiltration, exchange or tape the parts.

Check the assemble status of parts after troubleshooting.

It must be in the same assembled state when compared with the state before

disassembly.

Check the use circumstance of refrigerator.

If the refrigerator is installed at the place that is damp or wet, or

status of installation is unstable, change the installation place.

Ground the refrigerator properly

Particularly, Be sure to earth when there is a risk of an electric

leakage by humidity or wetness.

Do not use multi plugs in a plug socket at the same time.

Check if the power cord and socket is damaged, pressed, squeezed,

or fired.

If the plug or plug socket is damaged, repair or exchange it

immediately.

Do not allow consumers to repair the appliance by themselves.

Do not store other materials except the foods. Drugs or scientific materials : difficult to keep precise temperature.

The inflammables(alcohol, benzene, ether, LP gas, butane gas etc.):

have risk of explosion.



7

PRECAUTIONS(SAFETY WARNINGS)

Read all instructions before repairing the product and follow the instructionsin order to prevent danger or property damage.Plug out and remove all the items in regrigerator prior to repair.

CAUTION/WARNING SYMBOLS DISPLAYEDSYMBOLS

Indicates that adanger of deathor serious injuryexists.

Indicates that a risk of personal injuryor material damageexists.

means “Prohibited”.

means “Do not disassemble”.

means “No contact”.

means ”Warning or Caution”.

means “Earth or Ground”.

means “Unplug the unit before preforming service”

Plug out to exchange the interiorlamp.

It may cause electric shock.

Warning

Warning & Caution

Caution

Unplug

Use the rated componentson the replacement.Check the correct model, rated

voltage, rated current, operating temperature and so on.

On repair, make sure that thewires such as harness arebundled tightly.Bundle tightly wires in order not to be

detached by the external force and then not to be wetted.

Check if there is any traceindicating the permeationof water. If there is that kind of trace, change

the related components or do the

necessary treatment

such as taping

using theinsulating tape.

After repair, check theassembled state of components. It must be in the same assembled state

when compared with the state beforedisassembly.

On repair, remove completely dustor other things of housing parts,harness parts, and check parts.Cleaning may prevent the possible fire by

tracking or short.

R a t e d c o m p o n e n t s



8


❈ Please let users know following warnings & cautions in detail.

Do not allow users to put bottles orkinds of glass in the freezer.

Freezing of the contents may inflict a wound.

Do not allow users to store narrowand lengthy bottles or foods in asmall multi-purpose room. It may hurt you when refrigerator door is

opened and closed resulting in falling stuff down.

Do not allow users to storepharmaceutical products, scientificmaterials, etc., in the refrigerator.The products which need precise

temperature control should not be stored inthe refrigerator.

Do not allow users to storearticles on the product.Opening or closing the door may cause

things to fall down, which may causeinjury.

Prohibition

Warning & Caution

Do not allow users todisassemble, repair or alter. It may cause fire or abnormal

operation which leads to injury.

Do notdisassemble

Do not allow users to plugseveral appliances into the samepower receptable. May cause abnormal generation of

heat or fire.

Prohibition

Do not allow users to bend thepower cord with excessive forceor do not have the power cordpressed by heavy article. May cause fire.

Do not allow users to install therefrigerator in the wet place orthe place where water splashes.Deterioration of insulation of electric

parts may cause electric shock or fire.

Make sure of the earth.

Be sure the product is properly grounded.

Earth



9


For proper installation, this refrigerator must be

placed on a level surface of hard material that isthe same height as the rest of the flooring. This

surface should be strong enough to support a fully

loaded refrigerator, or approximately660lbs(299kg).

FLOORING

Protect the finish of the flooring. Cut a large

section of the cardboard carton and place

under the refrigerator where you are working.When moving, be sure to pull the unit straight

out and push back in straight.

MOVING



10

2. PRODUCT SPECIFICATIONS

2-1) Introduction of main function 11

2-2) Specifications13

2-3) Interior Views 14

2-4) Model Specification &Specification Chart15

2-5) Dimensions of Refrigerator (Inches) 18

2-6) Optional Material Specification 19

2-7) Refrigerant Route in Refrigeration cycle 20

2-7-1.Principle of freezeer 21

2-7-2.Operation theory of refrigeration cycle components22

2-7-3.Refrigeration Cycle Type 25

2-8) Cooling Air Circulation 26



11


A newly developed SAMSUNG bottom mount freezer in 2010 has the following

characteristics.

2-1) Introduction of Main Function

Surround Multi Flow Uniform cooling for each shelf and even in corner in fresh

food compartment by centerpositioned fan and duct withmultiple flow effluences.

Twin Cooling System The refrigerator and the freezer have two evaporators.

Given this independent system, the freezer and therefrigerator are cooled individually as required and are,

therefore, more efficient.Food odor from the refrigerator does not affect food in thefreezer due to separate air flow circulation.

Counter Height Design The Independent Mid Drawer(Flex zone) is counter

Height to fit contemporary kitchen.

Two Lever Dispenser Two lever dispenser can be get ice or water easily.

Secure Auto Close Door System Secure Auto Close Door System Cool tight doors Energy saving Preventing sweat on fridge doors

Flex Zone The Flex Zone is a full-width independent mid drawer with

adjustable temperature control.



12


1

2

3

4

5

Ez-OpenHandleSystem

NO Item Details

Changing Items

New Model

The freezer door and Mid drawer(Flex zone) are more user-friendly.So, They come as much convenient.

EmotionalLighting

The lighting helps you find groceriesEasier by lighting down when you openMid drawer(Flex zone) and freezer door.

Slim WaterFiltration

System

TouchSensorLighting

Slim water filter is placed betweencrispers for changing filter convenientlywithout removing items fromRefrigerator.

The display change more wider andapply Blue LED lighting.And Touch Sensor Lighting make therefrigerator graceful.

SmartDivider

- Easy rail partition can divide off 4independent space easily.

- The rail partition allow you to dividethe space of the convertible roomeasier.



Defrost Control From 12 to 22 hrs(comp.run time)Thermo Bimetal Protector 140°F(60)(off) 104°F(40)(on)

Defrost Thermistor(502AT) F: 50°F(10)(off)

59°F(15)(off)

Electrical RatingAC115V 60Hz 11.6 Amps

Maximum Current Leakage 0.25 mA

Maximum Ground Path Resistance 0.1 Ohm

Energy Consumption 562kWh/year

Ambient Temperature 70(21) 90(32)

Refrigerator34(1)46(7)34(1)46(7)

Flex Zone29(-1)~42(5)

29(-1)~42(5)

Freezer -8(-22)8(-14)

-8(-22)8(-14)

Run Time,%60 80

Refrigerant Charge (R134a) 5.64 oz(160g)

MKV190C-L2B 1314 Btu/hr(0.385kw)

Compressor oil Freol15cR Capillary tube(Dia, Length) 0.032,118

F Capillary tube(Dia, Length) 0.032,118

Clearance must be provided for air circulation

AT TOP 2" (50mm)

AT SIDES 3"(95mm)

AT REAR 2" (50mm)

ELECTRICAL SPECIFICATIONS REFRIGERATOR

13

2-2) Specifications

PRODUCT SPECIFICATIONS

NO LOAD PERFORMANCE

REFRIGERATION SYSTEM

INSTALLATION

FREEZER

FLEX ZONE

CompressorStep Valve

C-FanDryer

Condenser Water Valve



14


2-3) Interior Views

Freezer

Refrigerator

Light Door Closer

Cover Eva (Light)

Interlocking switch

FF Ice-Maker

Dis Door Bins

Cap Chute

Vertical HingedSection

Slide-Shelf

Mid Door Bins

Left Door Bins

Tilting Pocket

Light

Vegetable & FruitDrawers

Water Filter

Right Door Bins

Tempered glassshelves

Light

Auto Pull OutDrawer

Freezer DrawerGUARD

Light

ConvertibleRoom

Light

Cover Veg

Quick-SpaceGlass Shelf



15

COLOR

ModelITEM

2-4) Model Specification &Specification Chart


External size

NetCapacity

Weight

Packing

D

H

W

Efficiency of Volume

On Cabinet

W/O Handle

With Handle

W/O Hinge Cap

With Hinge Cap

Total

Freezer

Flex Zone

Refrigerator

Set

Packing

Width

Depth

Height

Black

Real STS

White

Platinum STS

Cabinet (Both Side)All Black

Noble STS

Snow White

Noble STS

DoorEmpire Black

Versailles Stainless

Snow White

Stainless Platinum

MoldingI Black

Creamy STS

Snow White

Creamy STS

Compressor

Rated Frequency and Frequency

Refrigerant

Foaming Agent

Refrigerant Input Amount

Type Refrigerator

Motor Rated Consumption Power

Electric Heater Rated Consumption Power

RF4287HA**Ice & Water Dispenser with Pantry

35 3/4 inch (908mm)

29 7/8 inch (760mm)

33 3/4 inch (858mm)

36 1/4 inch (920mm)

68 1/2 inch (1740mm)

69 7/8 inch (1774mm)

27.98 Cu.ft (792)

7.74 Cu.ft (219)

3.97 Cu.ft (112)

16.28 Cu.ft (461)

60%

362.4 Pounds (164kg)

402.1 Pounds (182kg)

38 5/8 Inch (980mm)

39 3/8 Inch (1001mm)

75 5/8 Inch (1923mm)

Reciprocate

AC 115V/60Hz

R 134a

C-Pentane

5.64 oz (160g)

Indirect Cooling Method Refrigerator

140W

340W



16

ItemsModel


Compressor

Evaporator

Model

First Defrost Cycle (Concurrent defrost of F and R)

Defrost Cycle(FRE)

Defrost Cycle(REF)

Pause time

THERMISTOR

(F-SENSOR)

502AT

Temperature Selection

-8(-22)

-2(-19)

8(-14)

Model

THERMISTOR

(R-SENSOR)

502AT

F/R Defrost-

Sensor

F/R Bimetal-thermoProtector


34(1)

38(3)

46(7)

Model

SPEC

Rated

Operating temperature

Condenser

Dryer

Capillary tube(Dia x Length)

Refrigerant

Model

Starting type

Oil Charge

Freezer

Refrigerator

MKV190C-L2B

BLDC

FREOL - 15c

SPLIT FIN TYPE

SPLIT FIN TYPE

Forced and Natural Convection Type

Molecular shieve XH-9

R : 0.032” x 118” (0.82mm x 3500mm) / F : 0.032” x 118” (0.82mm x 3500mm)

R134a

6hr 10min

12~23hr(vary according to the conditions used)

6~11hr(vary according to the conditions used)

12 1min

THERMISTOR (502AT)

5.0 at 77(25)

AC 125V 10A

Off : 140(60) / On : 104(40)

F/R FuseRated

Operating temperature

AC 250V 10A

Off: 230(110)

ON()

-5(-20)

1(-17)

11(-12)

ON()

36(2)

40(4)

48(8)

OFF()

-11(-24)

-5(-21)

5(-15)

OFF()

32(0)

36(2)

44(6)

SpecificationRF4287HA

C o m p o n e n t s f o r F r e e z e r

D e f r o s t

R e l a t e d C o m p o n e n t s

F r e e z e r

R e f r i g e r a

t o r

Model

THERMISTOR(F-SENSOR)

502AT


29(-1)

42(5)

ON()

32(0)

45(7)

OFF()

26(-3)

39(4) F l e x

D e f r o s t C y c l e

D e f r o s t S e n s o r

F u s e

R o o m

T e m p e r a t u r e S e n s o r C o m p o n e n t s



17


ItemsModel

Defrost Heater(FRE)

Defrost Heater(REF)

DISPENSER Heater

FRENCH Heater

ICE Duct Heater

Damper

Interlock with French Heater

-

Interlock with Defrost Heater (FRE)

-

Model

Temp.ON

Temp.OFF

Over Load Relay

Rated Voltage

Motor-BLDC(FRE)

Motor BLDC(ICE ROOM)

Motor-BLDC(REF)

Motor-BLDC(CIRCUIT)

Motor-DAMPER(PANTRY)

Lamp LED(REF)

Lamp LED(Flex&FRE)

Lamp LED(REF Side)

Lamp LED(Vegetable)

Lamp LED(REF Eva)

Heated at F Defrost

Heated at R Defrost

Door Switch

FRE

REF & Flex

REF(ICE ROOM)

Power Cord

Earth Screw

SpecificationRF4287HA

E l e c t r i c C o m p o n e n t s

AC 120V, 230W

AC120V, 120W

AC120V, 1.6W

AC120V, 7W

AC120V, 7W

DC 12V, 1W

4TM445PHBYY-82

257 41125 5

156.2 48.269 9

AC 115V/ 60Hz

DC12V / FDQT06SS3

DC12V / DREP5020LB

DC12V / FDQT06SS3

DC12V / FDQT04SS2

DC12V / NSBY001TD1

DC12V / 290~380mA

DC 12V / 45~75mA

DC 12V / 45~75mA

DC 12V / 95~145mA

DC 12V / 65~95mA

AC 125V 1.5A (1EA)

DC200V 1.5A / MS-406-SS-01(2EA)

125~250V /11A, EMB606

AC125V 15A

BSBN (BRASS SCREW)



18


2-5)Dimensions of Refrigerator (Inches)



19


2-6) Optional Material Specification

Part Name Part Code AMOUNT

FILTER

WATER-ASSYDA29-00020B

DA99-00240S

DA96-00398H

DA96-00392C

DA41-00519R

1

1

1

2

4

ASSY-

PACKING SUB

LED LAMP REF

LED LAMP SIDE

LED LMAP

CONV(FRE)



20

1. Compressor Condenser Hot Pipe Back Cluster Pipe Dryer Ref Capillary Tube Refrigerator

Evaporator Freezer EvaporatorSuction PipeCompressor

2. Compressor Condenser Hot Pipe Back Cluster Pipe Dryer Fre Capillary Tube Freezer

EvaporatorSuction PipeCompressor


2-7) Refrigerant Route in Refrigeration cycle



21


2-7-1. PRINCIPLE OF FREEZEER

BACK CLUSTER-PIPE



22


2-7-2. Operation theory of refrigeration cycle components

Condenser

1) Role: A device which radiates heat to the outside (water/air) to make liquid state for the hightemperature / high pressure gas refrigerant discharged from compressor

2) Types

A. Air-cooling Type : Condense air by circulating naturally or manually.

1) Natural Convection Type : Used for the household refrigerator which has small condensingcapacity.

2) Manual Convection Type : Circulate air manually by FAN-Motor (Large capacity)

B. Water-cooling Type : Make cooling water pass through the pipe in the condenser (Largecapacity)

Location

CLUSTER heat-radiating type : All Pipes effective for radiating heat are formed in theright/left, and front side of refrigerator with hard urethanes and radiate heat through thewhole surfaces of cabinet to ambient air.

Install the condenser on the outside of the product. (An old model)

Make them cluster at the lower part of product and radiate heat manually by fan.

Radiate condensed potential heat up to liquefy completely and make change the statewithout changing the gas temperature itself.

Pipe thickness

Low pressure: 6.3mmHigh pressure : 4.7mmCapillary : About 0.4-0.8mm

Condenser length (Based on 300): 26.5 M

Assistance : 5 M HOT-PIPE: 6.6 M CLUSTER-PIPE: 15 M

Capillary

1. Role: A device which makes low temperature and pressure refrigerant by reducing thepressure the normal temperature / high pressure liquid refrigerant condensed fromcondenser, and supply it to the evaporator.

A. To evaporate more lower temperature in case of evaporation.

B. It flows to the evaporator without back flowing to condenser, if compressor stops, and thedifference of pressure between high pressure and low pressure is small so it is easy tooperate the compressor again.

2. Outline

A. Thickness : About 0.4-0.8ßÆ

B. Length : It is changeable to low temperature and pressure (10->5ß∏ /ß≤) depends on the2M of thin and long copper pipe wall resistance.



23



Evaporator

1. Role: As the low pressure liquid refrigerant flowed from capillary absorbs heat inside of the

refrigerator, it becomes low pressure gas and refrigerate the foods.

2. Theory: The low pressure refrigerant flowed to evaporator operates cooling which takes

ambient evaporated potential heat with maintaining the evaporation up to evaporate

completely.

3.Types of Evaporator

A. ROLL-BOND Evaporator Direct Cooling ONE-DOOR Type

Rolled and adhere the 2 aluminum plate and then make refrigerant passage.

B. PIN-PIPE Type Indirect cooling TWO-DOOR Type

a small aluminum plate on the aluminum pipe to increase the cooling effect.

Compressor

1. Role: It operates same as pump which pull out the subterranean water. It inhales the low

temperature and pressure refrigerant gas (flowed out) from evaporator and make high

temperature and pressure refrigerant liquid in the compressor and send it to the condenser.

2. Type of Condenser

a. Back-and-forth motion type: A method that pistol makes back-and-forth motion through

shaft and cylinder of motor rotation and compresses. Used for household refrigerant

b. Rotary Type: A method that inhales the refrigerant gas through the gap between the

outside of rotor electric attached on the shaft and the inside of cylinder and compresses.

c. Centrifugal Type

3. Please insert the explanation of inverter comp operation theory.

Dryer

1. Role: Absorb the moisture from the refrigerant that refrigeration cycle circulates and

eliminate the foreign substance.

2. Structure: If even some moisture is included refrigerant is impossible to circulate by freezing

the small capillary outlet, so silica gel or molecular sieve is (included and) sealed to absorb

the internal moisture, and install a minute net to eliminate the foreign substance.



24



.Influence of moisture

Moisture precipitation Blocked by ice

Refrigerant and reaction

Life reduction of oil

Acceleration of oxidization

Copper plating phenomenon

Gas dissolution by the interaction of synthetic insulating material (insulator)

.Influence of foreign substance

Increase of condensed temperature.

Increase of temperature.

Decrease of cooling efficiency Shorten the life by friction between oil and foreign substance in the compressor.

Accumulator

1. Role : To send a pure refrigerant gas to compressor by removing completely the refrigerantliquid from evaporator.

If a refrigerant liquid go into the compressor, overload is occurred.



25


2-7-3. Refrigeration Cycle Type

TDM Cycle

Compressor

Ref Hot-Pipe

3Way Valve Ref Capillary Tube

Fre Capillary Tube

Ref Evaporator

Fre Evaporator

AccumulatorSuction Pipe

Connected Pipe

Back Cluster

Condenser Fre Hot-Pipe Flex Hot-Pipe



26

Refrigerator


2-8) Cooling Air Circulation

Freezer

Flex Zone



27

3. DISASSEMBLY AND REASSEMBLY

3-1) PRECAUTION28

3-2) Refrigerator Door 29

3-3) Door Handle Freezer31

3-4) Door Handle Freezer & Flex zone 32

3-5) Refrigerator Light 33

3-6) Cover-Display & Water-Dispenser 33

3-7) Water-Dispenser34

3-8) Glass Shelf 35

3-9) Foldable Glass Shelf 36

3-10) Vegetable & Fruit Drawers Shelf 36

3-11) Case Water 37

3-12) Case Water Filter38

3-13) Water Tank 39

3-14) Motor Damper 41

3-15) Water Filter (Assembly & Disassembly) 42

3-16) Vertical Hinged Section 43

3-17) Evaporator Cover In Refrigerator 44

3-18) Evaporator In Refrigerator 45

3-19) Freezer Door46

3-20) Convertible Door 47

3-21) Flex Zone Door48

3-22) Ice-Maker 49

3-23) Flex Zone Light50

3-24) Freezer Light50

3-25) Side Light 51

3-26) Door Switch In Freezer 51

3-27) Evaporator Cover In Freezer 52

3-28) Evaporator In Freezer 52

3-29) Machine Compartment 53

3-30) Electric Box 55



28

DISASSEMBLY AND REASSEMBLY

• Unplug the refrigerator before cleaning and making repairs.

• Do not dissemble or repair the refrigerator by yourself.- It may cause risk of causing a fire, malfunction and/or personal injury.

• Remove any foreign matter or dust from the power plug pins.- Otherwise there is a risk of fire.

• Do not use a cord that shows cracks or abrasion damage along its length or at either end.

• Do not plug several appliances into the same multiple power board. The refrigerator should always beplugged into its own individual electrical which has a voltage rating that matched the rating plate.- This provides the best performance and also prevents overloading house wiring circuits, which couldcause a fire hazard from overheated wires.

• Do not install the refrigerator in a damp place or place where it may come in contact with water.- Deteriorated insulation of electrical parts may cause an electric shock or fire.

• The refrigerator must be grounded.- You must ground the refrigerator to prevent any power leakages or electric shocks caused by currentleakage from the refrigerator.

• Do not put bottles or glass containers in the freezer.- When the contents freeze, the glass may break and cause personal injury.

• Do not store volatile or flammable substances in the refrigerator.- The storage of benzene, thinner, alcohol, ether, LP gas and other such products may causeexplosions.

- Required Tools

3-1) PRECAUTION

IMAGE ITEM USE



29

3-2) Refrigerator Door


Refrigerator

Door

Part Name How To Do Descriptive Picture

1. With the door opened, remove

the Cap Top Table() with a Flathead screwdriver, and close thedoor.

4. Disconnect the water tube ()by pulling the tube fitting()apart as shown in the picture.

3. Disconnect the electricalconnector() above the upperleft door hinge To disconnect theconnector() more easily, pressthe end of the hook() and pullconnector.

2. Remove the 3 screws holding

down the Top Table and removethe Top Table().

Be careful not to scratch or

break the partsCAUTION

Before doing the above,make sure that the unit isplugged out.CAUTION



30


Refrigerator

Door


6. Lift the door straightly up toremove.

7. With a Philips head screwdriver,remove the two screws ()attatched to the lower left andright door hinges.

With a wrench(10mm), removethe 2 flat head screws ()attatched to the lower left andright door hinges.Remove the lower left and rightdoor hinges ().

Refrigerator

Door


5-1. Left door hinge

With a Philips headscrewdriver, remove theground screws () andremove the 3 hex headbolts().

5-2. Right door hinge

At first, disconnect the LED

housing () and with aPhilips head screwdriver,remove the ground screws() and remove the 3 hexhead bolts().

Be careful not to drop thedoor.CAUTION



31

Door Handle

Fridge


1. Loose Set Screw with 0.1in Hexwrench and pull front thehandle.

2. Remove the cover vinyl of door.


3-3) Door Handle Refrigerator



32


Door Handle

Freezer

&

Flex zone


1. Remove the Cap Door with aflat-blade(-) screwdriver.

2.Remove 4 screws

3. Lift up the handle to have the

Slider Handle () pushed back.

4. After having the Slider Handle

() pushed back, screw up atthe hole.

5. Remove the 4 Fixer Handle ()by using the flat-blade(-)screwdriver.

6. Remove the door handle bylifting it up.

3-4) Door Handle Freezer & Flex zone





33


3-5) Refrigerator Light

3-6) Cover-Display & Water-Dispenser

Cover-Display


1. Remove a screw under thedisplay cover.

2. Remove the display cover bypushing it to the right side and

pulling it up.

Refrigerator

Light


1. Remove the lamp cover by pushing

a flat-blade screwdriver Into the

hooks behind and pull them out.

2. Remove 3 screws. And separatethe LED housing.

Be careful not to scratch orbreak the partsCAUTION

Before doing the above, makesure that the unit is plugged out.CAUTION



34


3-6) Cover-Display & Water-Dispenser

Cover-Display


3. Disengage the housing connectof display cover.

4. Take hooks () away from thegroove using flat-headscrewdriver and pull it toward

() to separate.

3-7) Water-Dispenser

Water-Dispenser


1. Disengage the Housing

Connectors by pushing a flat-blade screwdriver.

2. Remove 2 screws of the CaseIce Route Assy.

3. Pull the Case Ice Route Assy.



Water-Dispenser


1. Assembly shall be in order fromthe disassembly. Case-Ice andRoute shall be assembled insideof hose. Otherwise, assemblecannot be accomplished.

2. When assembling Cover-Display, first insert it fromleftside and then assemble torightside.(Check the wireinside.) and knock the displayinto the Case dispenser.

3-8) Glass Shelf

Glass Shelf


Remove the shelf by lifting thefront part of the shelf up andpulling it out.

hose

hose

35




36


3-9) Foldable Glass Shelf

Foldable Glass

Shelf


1. Remove the Cap.2. Remove 2 screws of the

Folderble Glass Shelf.

3-10) Vegetable & Fruit Drawers Shelf

Vegetable &Fruit Shelf


1. Remove the vegetable & fruitdrawer by pulling the roller partand lifting it up.

2. While pressing the button on theleft of the shelf in the picture, liftup the Vegetable & Fruit DrawerShelf.(Refer to the picture)

3. Remove the vegetable & fruitdrawer shelf by pulling it out.(Refer to the picture)



37


3-12) Case Water Filter3-11) Water Valve

Water Valve


One Water Tube is located in themachine compartment of therefrigerator. Before disassemblingthe Water Tube, take out thecompressor cover.

1. Remove the water valve fixed bythe screw.

2. Remove the tube clip() anddisconnect the water hose by

pushing the fiting apart.

3. Remove the tube clip() anddisconnect the valve hose fromWater Valve.

4. Open the Fixer hose() anddisconnect the dispenser hosefrom Water Valve.

5. Disconnect the 2 Housing()beside Condenser().

6. Check the Water Valve(). If itis not good, you must change it.



38


3-12) Case Water Filter3-12) Case Water Filter

Case Water Filter


Before disassembling the CaseWater Filter take out water filterand drawers and shelves locatedon the Case Water Filter.(Refer to the “Vegetable & FruitShelf”)

1. Remove 2 screws.

2. a. Disconnect the water fixertube(1) on left top table.(Referto the “Refrigerator door”)push the flat-blade driver

between fixer tube() andtube fitting().

b. Disconnect the water tube()

by pulling the tube fitting().

3. Turn the refrigerator back andremove 4 screws and lose 5hoses.

4. Pull the hose out.



39


Case Water Filter


5. Pull the two hose out from thewater valve.(Refer to the “WaterValve”)

5. Pick the Case Water Filter out.

3-13) Water Tank

Water Tank


Before disassembling the Water

Tank take the water filter() andwater tray() out.

1. Remove 2 screws beside.

2. a. Lose the hooks by pushingthe flat-blade driver.

3-12) Case Water Filter3-12) Case Water Filter



40


3-12) Case Water Filter3-13) Water Tank

Water Tank


b. Lose the hooks by pushingthe flat-blade driver.

3. Cut the sponge stick on theCase Water tank. and divide

Case Water Tank.

4.Remove the tube clips() anddisconnect the water tank hosesby pulling the fitting tube.

5. Be careful when you connect

the hoses. White hoses() goto the In mark( ).

Other hoses() go to the outmark( ).



41


3-14) Motor Damper

Motor Damper


1. Remove the 2 screws under the.water filter case and take off the

cover damper().

2. Disengage 2 housing connector.

3. Take off the Motor Damper bypulling a flat-blade screwdriver .



42


3-15) Water Filter (Assembly & Disassembly)

Water Filter


1. Turn the water filtercount-clockwise.(Refer to the picture)

2. Remove the water filter bypulling it.

(Refer to the picture)

3. Push the water filter directly.

4. Turn the water filter clockwiseuntil it locked.



43


3-16) Vertical Hinged Section

Vertical Hinged

Section


1. Remove 2 screw cap parts witha flat-blade(-) screwdriver.(Refer to the picture)

2. Unscrew 2 screws.

3. Disengage the internal housingconnector of the vertical hinge.

4. Remove the vertical hingedsection by lifting the verticalhinge up.(Refer to the picture)

Be careful not to scratch orbreak the parts

CAUTION



44


3-17) Evaporator Cover In Refrigerator

Evaporator Cover

In Refrigerator


1. Remove the angle cap with aflat-blade screwdriver.(Refer to the picture)

2. Unscrew 4 screws.

3. Remove the the lower part ofangle mid by pulling it out andpushing it down.(Refer to the picture)

4. Remove the hook by pulling itfrom the lower part and pushingthe cover down.(Refer to the picture)

5. Disconnect the 2 housingconnectors. (Refer to thepicture)





45


3-18) Evaporator In Refrigerator

Evaporator

In Refrigerator


1. Remove the the housing coverby pushing both lateral sides of

the housing cover () andpulling it out.(Refer to the picture)

2. Disconnect the housingconnector part on left side.(Refer to the picture)

3. Disconnect the housingconnector on right side.

4. Remove the evaporator by lifting

the bottom side of it up andpulling it out.(Refer to the picture)

< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >< left >

< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >< right >



46


3-19) Freezer Door

Freezer

Door


1. Pull the drawer open to fullextension.

2. Remove the brackets() bypulling the them outside after

separate the tilting Pocket ().

3. Take out the lower basket() bylifting the basket up from railsystem.

4. Unscrew 4 bolts.(2 bolts each on the both sides)

5. Lifting up the freezer door,remove the freezer door fromthe rail.



47


3-19) Freezer Door

Freezer

Door


6. Press the both side hooks withflat-blade(-) screwdriver.(Refer to picture)

7. Remove the Freezer Rail bypulling it.

3-20) Convertible Door

Mid drawer


1. Pull the and remove the

convertible room () by pulling

it to your body with both hands.open to full extension.

2. Remove the cover housing ()by a flat-blade screwdriver.

3. Disengage the housing.



48


3-21) Flex Zone Door

Mid drawer


4. Unscrew 4 bolts.(2 bolts each on the both sides)

5. Lifting up the convertible door.remove the convertible doorfrom the rail.

6. Remove the shaft gear() bypull the pin() out.

7. Remove the screw and pull outThe rail.



49

3-22) Ice-Maker


Ice Maker


2. Remove 1 screw of the Cover.

1. Pull the lever forward and takeout the ice bucket.

3. Disassemble the cover with aflat-blade(-) screwdriver and pullit out.

4. Disengage the 2 housingconnectors.

5. Push the hook and pull the Ice-Maker out.

6. To disassemble, push the taband pull the Case-Auger and themotor out.

leverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverleverlever



50


3-23) Flex Zone Light

Flex Zone Light


1. Remove the cover Flex zone

lamp() by a flat-bladescrewdriver.


3-24) Freezer Light

Freezer Light


1. Remove the cover Freezer

lamp()like the waydisassembling the Flex zonelamp.




51


3-25) Side Light

Refrigerator Light


1. Remove the cover Side

lamp() by a flat-bladescrewdriver.

2. Separate the Side lamp from the

case.


3-26) Door Switch In Freezer

Door Switch In

Freezer


1. Remove the freezer drawer binby using a flat-blade(-)screwdriver.(Refer to thepicture)

2. Disconnect the housingconnector part.



52


3-27) Evaporator Cover In Freezer

3-28) Evaporator In Freezer

Evaporator In

Freezer


1. Remove the housing connectorpart left one.

2. Remove the evaporator bypulling the lower part of theevaporator while lifting it up.

Evaporator Cover

In

Freezer


1. Remove the freezer door andfreezer drawer by pulling out thedrawer and then unscrewing 2screws.

2. Lift up the evaporator cover.

3. Disengage the 3 housingconnectors and remove theevaporator cover.



53


3-29) Machine Compartment

Motor Fan


1. Unscrew 6 screws of covercompressor.

2. Remove 1 screw and disengaethe housing connector. (Refer tothe picture)

3. Remove the hooker of supportcircuit motor by lifting the hookerup and pulling it out.

4. Remove the screw with a flat-blade screwdriver.(Refer to the picture)

5. Remove the motor fan by pullingthe fan out while graping themotor part.(Refer to the picture)

6. Unscrew 2 screws fixed in themotor.

7. Remove the hook of the motorcover with a flat-blade (-)screwdriver and then removethe motor.



54


Step Valve


2. Disengage the housingconnector.

1. Unscrew 1 screw fixed on left.

3-29) Machine Compartment

Relay O/L


1. Disengage the housingconnector.

2. Remove Cover Relay.

3. Remove the relay O/L with a

flat-blade screwdriver.(Refer to the picture)



55


3-30) Electric Box

PBA Main

PBA SMPS


1. Remove the ground screw 8attached to the upper left andright door hinges with a phillpsscrewdriver(+)

2. Disengage all housingconnectors from the main PCB.

3. Remove the main PCB bypushing the lower part of thehook down.

4. Unscrew 2 PCB fixing screws.

5. Remove the main PCB by liftingthe upper part of the hook up.(Refer to the picture)

1. Remove the SMCS PCB bylifting the upper part of the hookup.



56

4. TROUBLESHOOTING

4-1) Function for failure diagnosis57

4-1-1. Test mode (manual operation / manual defrost function)57

4-1-2. Display function of Communication error 58

4-1-3. Self-diagnostic function 59

4-1-4. Display function of Load condition 62

4-1-5. Exhibition mode setting function 63

4-1-6. Option setting function 64

4-1-7. Option TABLE 66

4-2) Diagnostic method according to the trouble symptom(Flow Chart) 67

4-2-1. If the trouble is detected by self-diagnosis 69

4-2-2. If FAN does not operate80

4-2-3. If ICE Room Fan does not operate 81

4-2-4. If FAN does not operate (Flex Room - FAN) 82

4-2-5. If Ice Maker does not operate 83

4-2-6. If defrost does not operate (F,R DEF Heater) 84

4-2-7. If Power is not supplied 85

4-2-8. If compressor does not operate 86

4-2-9. When alarm sounds continuously without stop(related with buzzer sound) 88

4-2-10. If Mid Drawer Panel PCB does not work normally 90

4-2-11. When refrigerator ROOM Lamp does not light up 91

4-2-12. If ICE Water is not supplied92

4-2-13. If Cubed or Crushed Ice is not supplied 93

4-2-14. If Cover Ice Route Motor(Geard Motor) is not working normally 94

4-2-15. If Inverter PCB Power is not supplied 95

4-2-16. LED blinking frequency depending on protecting functions 96

Spm internal diode voltage 97

Inverter controller board connector location 98

Inverter pcb circuit diagram 99

4-3-1. inrush current protecting circuit 100

4-3-2. power source(hybrid ic) 100

4-3-3. location sensing resistance area 101

4-3-4. sensing current area101

4-3-5. comp operating signal area102

4-3-6. bootstrap charging area 102



57

TROUBLESHOOTING

4-1) Function for failure diagnosis

4-1-1. Test mode (manual operation / manual defrost function)

If Energy Saver Key + Power Cool Key on the front of panel are pressed simultaneously for 8 seconds , itwill be changed to the test mode and all displays on the front of panel will be off. If any key on the front of panel is pressed within 15 seconds after the test mode, it will be operated as

below sequence :Manual operation1(FF 1) Manual operation2(FF 2) Manual operation3(FF 3) -> manual detrost of freshfood and freeser compartments(fd) -> cancel(Display all off)

If any key on the front of panel is not pressed within 15 seconds after the test mode, the test mode will becanceled and it will be returned to previous mode.

Energy Saver Key + Power Cool Key are pressed simultaneously for

8 seconds, (displays are all off)It will be changed to the test mode (manual operation) by pressing any key

1-1) If any key is pressed once in test mode, blinks "FF-1" on the display and it indicates the refrigerator

has entered the manual operation. At this moment, buzzer beeps as an alarm.1-2) If any key is pressed once at the manual operation1 status, FF-2 will be displayed.

And if any key is pressed one more time, FF-3 will be displayed. FF-2 and FF-3 means manualoperation2 and 3 separately. These 3 functions operate with different RPM of COMP.

1-3) If manual operation is selected, compressor will run at once without 7 minutes delay in any mode. If therefrigerator is on the defrost cycle at the moment, defrost will be finished and manual operation will

begin.

(Be careful if manual operation get started at the moment of compressor off, over load could beoccurred)

1-4) If manual operation works, compressor & f-fan operate continuously for 24 hours and fresh food

compartment will be controlled by the setting temperature.

1-5) When the manual operation runs, setting temperature will be selected automatically as below: freezercompartment -8(-22), fresh food compartment 34(1).

1-6) During manual operation, Power Freeze & Power Cool function will not be worked.

If a function is selected, the power function icon of the selected function will be off automatically after

10 seconds.

1-7) Manual operation can be canceled by turning on the appliance after power off(reset) or choosing the

step 3) test cancel mode.

1-8) Alarm(0.25 sec ON/ 0.75 sec OFF) will beep continuously until manual operation is completed and

there is no function to make the sound stop.

Compulsion working 1 : 3600RPM Compulsion working 2 : 2450RPM Compulsion working 3 : 2200RPM

1) Manual operation function



58

4-1-2. Display function of Communication error

TROUBLESHOOTING

2-1) If any key is pressed one more time during manual operation(Fresh food and freezerpartment), "Fd"shows in the display and then manual operation will be canceled at once and fresh food compartmentwill be defrosted.

2-2) At this moment, alarm beeps for 3 seconds (0.1 sec ON/ 1 sec OFF) during manual defrost function of

fresh food and freezer compartment.

2) Simultaneous manual defrost(fresh food and freezer compartments) function

3-1) During the simultaneous defrosting of fresh food and freezer compartments simultaneously, if the

display panel change to the test mode and test button is pressed one more time, defrosting of fresh

food and freezer compartments will be canceled at the same time and will return to the normal

operation.

Or, all test functions will be canceled by turning main power ON and OFF.

3) Test cancel mode

1-1) If there is no answer for 10 seconds after the panel micom received the requirement of communication,

"Pc - Er" display on the panel PCB will be ON/OFF alternately until the communication error is

canceled. (0.5 sec ALL ON, 0.5 sec ALL OFF alternately)

1-2) “Pc - Er” display on the Flex Zone Temp. Display will be ON/OFF alternately until the communication

error is canceled. (0.5 sec ALL ON, 0.5 sec ALL OFF alternately)

1) Display function when PanelMAIN MICOM communication has error

2-1) ”OP - Er” code is repeatedly ON/OFF until Option error settles down.

2) Display function when PanelMAIN MICOM OPTION has error



59

4-1-3. Self-diagnostic function

1-1) Micom operates self-diagnostic function to check the temperature sensor condition within 1 secondwhen the refrigerator turned On initially.

1-2) If bad sensor is detected by the self-diagnostic function, the applicable display LED will blink for 0.5sec.At this moment, there is no beep sound.(Refer to self-diagnostic CHECK LIST)

1-3) Self-diagnostic button is recognized only when the error is displayed by the bad sensor. Display doesnot operate normally but temperature control will be controlled by the emergency operation.

1-4) When the error is detected by self-diagnosis, the error can be canceled automatically if all troubledsensors are corrected or Self-diagnostic function key (Energy Saver Key + Lighting Key ) are pressedsimultaneously for 8 seconds.(Return to normal display mode)

2-1) If Energy Saver Key + Lighting Key are pressed simultaneously for 6 seconds during normal operation,

the temperature setting display will operate for 2 seconds (ON/OFF 0.5sec each).If Energy Saver Key + Lighting Key are pressed simultaneously for 8 seconds (including above 2

seconds), self-diagnostic function will be selected.

2-2) At this moment, self-diagnostic function will be returned with buzzer sound 'ding-dong'.If there is an error, display of error will be operated for 30 seconds and then return to normal condition

whether problem is corrected or not.(Refer to self-diagnosis CHECK LIST)

2-3) Input by button is not accepted during self-diagnostic function.

1) Self-diagnostic function in the Initial power ON

2) Self-diagnostic function during normal operation

TROUBLESHOOTING

If Energy Saver Key + Lighting Key are pressed simultaneously

for 8 seconds, the error mode by self-diagnosis will be canceled.

If Energy Saver Key + Lighting Key are pressed simultaneously

for 8 seconds, the error mode by self-diagnosis will be canceled.



60

TROUBLESHOOTING

Self-diagnostics check list

Trouble contentsItemLED

F R

Diagnostic method

FZ-Sensor Error

FF-Sensor Error

FZ-DEF-Sensor Error

FF-DEF-Sensor Error

Ambient-Sensor Error

Flex room-Sensor Error

The voltage of MAIN PCB CN30- “6”N76-”1”:shall be between 4.5V~1.0V

The voltage of MAIN PCB CN30- “5”N76-”1”:shall be between 4.5V~1.0V

The voltage of MAIN PCB CN30- “8”N76-”1”:

shall be between 4.5V~1.0V

The voltage of MAIN PCB CN78- “8”CN78-

”12”: shall be between 4.5V~1.0V

The voltage of MAIN PCB CN78- “9”CN76-”1”:


Humidity-Sensor ErrorThe voltage of MAIN PCB CN30- “1”CN30-”7”:


Display error : separation of

sensor housing part, contact

error, disconnection, short

circuit.

Display error of detecting

temperature of sensor :

more than 149F(+65) or less

than -58F(-50)

Separation of sensor housing part,contact error, disconnection, short circuit

Ice Maker(FF)

Sensor Error

The voltage of MAIN PCB CN90- “1”CN90-”7”:


Display error : separation of sensorhousing part, contact error,disconnection, short circuit.Display error of detecting temperature ofsensor : more than 149F(+65) or lessthan -58F(-50)

Ice Room Sensor ErrorThe voltage of MAIN PCB CN78- “10”CN78-

”1”: shall be between 4.5V~1.0V

Display error during operation ofapplicable fan motor : Feed back signal

line contact error, motor wire separation,motor error

FZ-FAN ErrorThe voltage of MAIN PCB CN76- “3”(Yellow)

CN76-”1”(Gray): shall be between 7V~12V

Display error during operation ofapplicable fan motor : Feed back signalline contact error, motor wire separation,motor error

FF-FAN ErrorThe voltage of MAIN PCB CN76- “4”(Orange)

CN76-”1”(Gray): shall be between 7V~12V

Display error during operation ofapplicable fan motor : Feed back signalline contact error, motor wire separation,motor error

C-FAN ErrorThe voltage of MAIN PCB CN76- “5”(Sky-blue)CN76-”1”(Gray): shall be between 7V~12V

Separation of freezer compartmentdefrost heater housing part, contacterror, disconnection, short circuit or

temperature fuse error.Display error : the defrosting does notfinish though fresh food compartmentdefrost is heating continuously for morethan 70 minutes.

FZ-DEF Error

After separating MAIN PCB CN70 wire from PCB,resistance value between CN70 Brown CN70

Gray shall be 63(230) ohm 7%.(Resistance

value is varied by input power)0 ohm : heater short, ohm : wire/bimetal open

(Must power off)

The voltage of MAIN PCB CN30- “3”N76-”1”:




61

TROUBLESHOOTING

Self-diagnostics check list

Trouble contentsItemLED

F R

Diagnostic method

Separation of fresh food compartmentdefrost heater housing part, contacterror, disconnection, short circuit ortemperature fuse error.Display error : the defrosting does notfinish though fresh food compartmentdefrost is heating continuously for morethan 80 minutes.

FF-DEF Error

After separating MAIN PCB CN70 wire from PCB,

resistance value between CN70 White CN70

Gray shall be 120(440) ohm 7%.(Resistanc evalue is varied by input power)

0 ohm : heater short, ohm : wire/bimetal open(Must power off)

Display error when open error isdetected by damper heater : separationof Damper Heater housing part, contacterror, disconnection, short circuit

Flex Zone-Damper-

Heater Error

After separating MAIN PCB CN77 wire from PCB,

resistance value between Black Brown wireshall be 135 ohm 7%.

0 ohm : heater short, Ohm : wire / bimetal Open.

Display error when open error isdetected by Heater : separation of IcePipe Heater housing part, contact error,disconnection, short circuit.

Ice Maker(FF)

Function Error

After changing the Ice Maker(R), plug therefrigerator power code again, and check the

operation.

Display error when the Ice Maker(FZ) kitoperate moving ice over 3 times or it isnot leveled.

Ice Room-

FAN Error

The voltage of MAIN PCB CN76-”2”(Black)

CN76-”1” (Gray): shall be between 7V~12V

Display “41 - E” in the panel with alarm :MICOM MAIN PANEL communication error.

OP-Er is displayed when the Option isnot equivalent with the right value.

PanelMain

Communication Error

Actually, If there is not a problem, it is desirableto replace Main and Panel PCB With the

oscilloscope after a cable problem confirming.

F R



62

4-1-4. Display function of Load condition

1) If Power Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds during normal

operation, the temperature setting display of fresh food and freezer compartments will blink ALL ON/OFFwith 0.5 for 2 seconds.

2) At this moment, If Power Cool Key after Energy Saver Key + Lighting Key is pressed, load conditiondisplay mode will be returned with alarm.

3) Load condition display mode shows the load that micom signal is outputting.

However, It means that micom signal is outputting, it does not mean whether load is operating or not.That is to say that though load operation is displayed, load could not be operated by actual load error or

PCB relay error etc. (This function would be applied at A/S.)4) Load condition display function will maintain for 30 seconds and then normal condition will be returned

automatically.

5) Load condition display is as below. Only the load control LED will blink with 0.5interval in "Display LED"

TROUBLESHOOTING

If Energy Saver Key + Lighting key are pressed simultaneously for 6 seconds, ALL ON/OFF will blinkwith 0.5interval for 2 seconds.

If take the finger off from above keys and press Power Cool Key, load condition mode will be started.

F-10

F-1

R-10

R-1



63

TROUBLESHOOTING

4-1-5. Cooling Off mode setting function

1) If Energy Saver Key + Power freeze are pressed simultaneously for 3 seconds during normal operation,Cooling Off mode will be started with buzzer sound(ding-dong).

2) If above Energy Saver Key + Power freeze Key are pressed one more time, Cooling Off mode will becanceled.

3) If Cooling Off mode is selected, blinks "OF-OF" on the temperature setting display of the panel and it

indicates the refrigerator has entered the Cooling Off mode.4) During Cooling Off mode, if fresh food and freezer compartments sensors are higher than 149(65)

Cooling Off mode will be canceled automatically and freezing operation will be returned.(There is no buzzer sound when the Cooling Off mode is canceled by the temperature)

5) Operation contents of Cooling Off mode- Display, Fan motor and etc operate normally, not to operate compressor only.

- Defrost is not operated. (including french heater)

- Display function of the initial real temperature is finished.- Under the condition of Cooling Off mode, Cooling Off mode will be operated when Power On after

Power OFF.

If Energy Saver Key + Power freeze Key are pressed for 3 seconds, Cooling Off mode will be started.

Load mode Check list

Display LED Display contents Operation contents

R-1-

R-1-

R-1-

R-1-

R-1-

R-1-

F-1-, ALL LED Off

R1-

F-1-

F-1-

F-1-

F-1-

F-1-

F-1-

R-10-

R-10-

R-10-

R-10-

F-10-

F-10-

F-10-

F-10-

F-10-

R-FAN High

R-FAN Low

R-DEF Heater

Start Mode

Overload condition

Low temperature condition

Normal Condition

Exhibition Mode

COMP.

F-FAN High

F-FAN Low

F-DEF Heater

Mide Drawer Room

Dispenser Heater

Mide Drawer Room Damper Open

R-valve Open

C-FAN High

C-FAN Low

Water Tank Heater

F-valve Open

Ice Room-FAN High

Ice Room-FAN Low

French Heater

When FF compartment FAN operates with high speed, applicable LED ON

When FF compartment FAN operates with low speed, applicable LED ON

When FF compartment defrost heater operates, LED ON

When refrigerator is plugged initially, LED ON

When ambient temperature is more than 93(34°C), LED ON

When ambient temperature is less than 72(22°C), LED ON

When ambient temperature is between 73(23°C) and 91(33°C)

LED ON at the display mode.

When COMP operates, applicable LED ON.

When FZ compartment FAN operates with high speed, applicable LED ON

When FZ compartment FAN operates with low speed, applicable LED ON

When FZ compartment defrost heater operates, LED ON

When Flex Zone FAN operates, LED ON

When Dispenser Heater operates, applicable LED ON.

When damper open, applicable LED ON

When the R-valve operates LED ON

When C-FAN operates with high speed, applicable LED ON

When C-FAN operates with low speed, applicable LED ON

When Water Tank Heater operates, applicable LED ON.

When the F-valve operates LED ON

When Ice Room-FAN operates with high speed, applicable LED ON

When Ice Room-FAN operates with low speed, applicable LED ON

When French Heater operates, applicable LED ON



64

4-1-6. Option setting function

If Power freeze Key + lighting Key are pressed simultaneously for 12 seconds during normal operation,fresh food and freezer compartments temperature display will be changed to option setting mode.

If the display changes to option setting mode, all displays will be off except freezer and fridge

compartments temperature display as below.

(Fresh food and freezer compartments case will be explained only because all options are operated with

the same method according to the option table.)

TROUBLESHOOTING

If Freezer Key+ lighting Key are pressed simultaneously for 12 seconds, option setting mode will be

started.

KEY operation method for changing to option mode

KEY control method after converting to option mode

Key control in option mode

Energy Saver Key

Freezer Key

Lighting key

Fridge key

Code Down key

Code Up key

Reference Value down key

Reference Value Up key



65

1) For example, if you want to change freezer compartment standard temperature to -4(-2°C) byoperating option, do as below. This function is for changing the standard temperature.In -2(-19°C) of current temperature of freezer compartment, if you make the temperature lower to -4(-2°C) by the option, the standard temperature would be controlled -6(-21°C)Therefore, if you change the setting of temperature option to -2(-19°C) on the panel, the appliance willbe operated with -6(-21°C). It means that standard temperature is controlled -4(-2°C) less thansetting temperature in the display.

2) After changing to the option mode, fresh food compartment "0" , freezer compartment "0" will bedisplayed. ( Basically fresh food compartment "0", freezer "0" would be set at shipping process, butsetting value could be changed for the purpose of improving product at mass producing process.)- If fresh food compartment "0" shows only, temperature reference value of freezer compartment will be

set and current freezer compartment temperature code will be displayed on the freezer temperaturedisplay.

3) If freezer compartment "4" is set as below freezer compartment code after fresh food compartment "0 isset, standard temperature of freezer compartment will be lower than -4(-2.0°C).(Refer to the picture "changing the freezer compartment temperature")

4) Option changing method as above is the same as all RF4287***** model.

5) By the same method as above, it is possible to control the fresh food compartment temperature, watersupply, ice-maker harvest temperature/time, defrost return time, hysteresis by temperature, notch gap by

temperature etc.6) Option function is set in the EEPROM at shipping process in the factory.You would better not to change the option of your own.

Completing the setting is that option function return to normal display after 20 seconds.Do not turn off the appliance before returning to the normal display mode.

: If you wait for 20 seconds after completing the setting, MICOM will save the setting value to the EEPROM

and normal display will be returned and the option setting mode will be canceled.

TROUBLESHOOTING

Basically, all the data in option has cleared from the factory.Therefore, almost all setting value are "0".But, some setting values could be changed for the purpose of improving performmance.You need to check the product manual and/or specification.

NOTE

Option setting function exists in the other items.We will skip the explanation of the other functions by the option because it is associatedwith refrigerator control function and is not needed at SERVICE.(Please do not set the other options except above SERVICE Manual.)

NOTE



66

TROUBLESHOOTING

4-1-7. Option TABLE

1) Temperature changing table of freezer compartment

ex) If you want to change the freezer standard temperature to-4(-2°C)

Set item Freezer Temp Shift

MODEL RF4287***

Fridge Room 7-SEG

0

Setting value

Temp.

compensation

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

0(0.0)

-1(-0.5)

-2(-1.0)

-3(-1.5)

-4(-2.0)

-5(-2.5)

-6(-3.0)

-7(-3.5)

+1(+0.5)

+2(+1.0)

+3(+1.5)

+4(+2.0)

+5(+2.5)

+6(+3.0)

+7(+3.5)

+8(+4.0)

FZcompartment

Code

Setting value

Temp.

compensation

0

1

2

3

4

5

6

7

89

10

11

12

13

14

15

0(0.0)

-1(-0.5)

-2(-1.0)

-3(-1.5)

-4(-2.0)

-5(-2.5)

-6(-3.0)

-7(-3.5)

+1(+0.5)+2(+1.0)

+3(+1.5)

+4(+2.0)

+5(+2.5)

+6(+3.0)

+7(+3.5)

+8(+4.0)

FZcompartment

Code

ex) If you want to change thefreezer compartmentstandard temperature to4(2°C)

Reference

Value

2) Temperature changing table of fresh food compartment

Set item Freezer Temp Shift

MODEL RF4287***

Fridge Room 7-SEG1

ReferenceValue



67

TROUBLESHOOTING

4-2) Diagnostic method according to the trouble symptom(Flow Chart)

DATA1.Temperature tableResistance value and MICOM port voltage of sensor according to the temperature

SENSOR CHIP : based on PX41C, PX41C, 502AT/ 103**(ICE MAKER SENSOR(MOLD)/FULL UP, 20Kohm( Actual measurement = value of the table below X 2 )

-50

-49

-48

-47

-46

-45

-44

-43

-42

-41-40

-39

-38

-37

-36

-35

-34

-33

-32

-31

-30

-29

-28

-27

-26

-25

-24

-23

-22

-21

-20

-19

-18

-17

-16

-15

-14-13

-12

-11

-10

-9

-8

-7

-6

-58

-56.2

-54.4

-52.6

-50.8

-49

-47.2

-45.4

-43.6

-41.8-40

-38.2

-36.4

-34.6

-32.8

-31

-29.2

-27.4

-25.6

-23.8

-22

-20.2

-18.4

-16.6

-14.8

-13

-11.2

-9.4

-7.6

-5.8

-4

-2.2

-0.4

1.4

3.2

5

6.88.6

10.4

12.2

14

15.8

17.6

19.4

21.2

4.694

4.677

4.659

4.641

4.622

4.602

4.581

4.560

4.537

4.5144.490

4.465

4.439

4.412

4.385

4.356

4.326

4.296

4.264

4.232

4.199

4.165

4.129

4.093

4.056

4.018

3.980

3.940

3.899

3.858

3.816

3.773

3.729

3.685

3.640

3.594

3.5483.501

3.453

3.405

3.356

3.307

3.258

3.208

3.158

153319

144794

136798

129294

122248

115631

109413

103569

98073

9290388037

83456

79142

75077

71246

67634

64227

61012

57977

55112

52406

49848

47431

45146

42984

40938

39002

37169

35433

33788

32230

30752

29350

28021

26760

25562

2442523345

22320

21345

20418

19537

18698

17901

17142

Voltage Resistance

-5

-4

-3

-2

-1

0

1

2

3

45

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

3132

33

34

35

36

37

38

39

23

24.8

26.6

28.4

30.2

32

33.8

35.6

37.4

39.241

42.8

44.6

46.4

48.2

50

51.8

53.6

55.4

57.2

59

60.8

62.6

64.4

66.2

68

69.8

71.6

73.4

75.2

77

78.8

80.6

82.4

84.2

86

87.889.6

91.4

93.2

95

96.8

98.6

100.4

102.2

3.107

3.057

3.006

2.955

2.904

2.853

2.802

2.751

2.700

2.6492.599

2.548

2.498

2.449

2.399

2.350

2.301

2.253

2.205

2.158

2.111

2.064

2.019

1.974

1.929

1.885

1.842

1.799

1.757

1.716

1.675

1.636

1.596

1.558

1.520

1.483

1.4471.412

1.377

1.343

1.309

1.277

1.253

1.213

1.183

16419

15731

15076

14452

13857

13290

12749

12233

11741

1127110823

10395

9986

9596

9223

8867

8526

8200

7888

7590

7305

7032

6771

6521

6281

6052

5832

5621

5419

5225

5039

4861

4690

4526

4369

4218

40723933

3799

3670

3547

3428

3344

3204

3098

Voltage Resistance

40

41

42

43

44

45

46

47

48

4950

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

7677

78

79

80

81

82

83

84

104

105.8

107.6

109.4

111.2

113

114.8

116.6

118.4

120.2122

123.8

125.6

127.4

129.2

131

132.8

134.6

136.4

138.2

140

141.8

143.6

145.4

147.2

149

150.8

152.6

154.4

156.2

158

159.8

161.6

163.4

165.2

167

168.8170.6

172.4

174.2

176

177.8

179.6

181.4

183.2

1.153

1.124

1.095

1.068

1.040

1.014

0.988

0.963

0.938

0.9140.891

0.868

0.846

0.824

0.803

0.783

0.762

0.743

0.724

0.706

0.688

0.670

0.653

0.636

0.620

0.604

0.589

0.574

0.560

0.546

0.532

0.519

0.506

0.493

0.481

0.469

0.4570.446

0.435

0.424

0.414

0.404

0.394

0.384

0.375

2997

2899

2805

2714

2627

2543

2462

2384

2309

22372167

2100

2036

1973

1913

1855

1799

1745

1693

1642

1594

1547

1502

1458

1416

1375

1335

1297

1260

1225

1190

1157

1125

1093

1063

1034

1006978

952

926

902

877

854

832

810

Voltage Resistance



68

TROUBLESHOOTING

4-2) Diagnostic method according to the trouble symptom(Flow Chart)

DATA2. Humidity Sensor table- Voltage output table @23°…, 5Vdc --- HTG3515CH/HTG3535CH

RH(Temperature compensate ) = RH (Relative Humidity ) + ( Temp(°C) °© 23°C) x 0.05

0

1

2

3

4

5

6

7

8

9

1011

12

13

14

15

16

17

18

19

20

21

22

2324

25

26

27

28

29

30

31

32

33

34

35

36

3738

39

40

41

42

43

44

45

909

943

977

1010

1043

1076

1109

1141

1173

1205

12351266

1297

1328

1359

1390

1420

1450

1480

1510

1540

1569

1598

16271656

1685

1713

1741

1769

1797

1825

1852

1879

1906

1933

1960

1986

20122038

2064

2090

2116

2142

2168

2194

2220

186

193

200

207

213

220

227

233

240

247

253259

265

272

278

284

291

297

303

309

315

321

327

333339

345

350

356

362

368

373

379

384

390

395

401

406

412417

422

428

433

438

444

449

454

744

772

800

827

854

881

908

935

961

987

10111037

1062

1088

1113

1138

1163

1188

1212

1237

1261

1285

1309

13331356

1380

1403

1426

1449

1472

1495

1517

1539

1561

1583

1605

1627

16481669

1690

1712

1733

1754

1776

1797

1818

RH(%)Output(mV)

A/D(10 bit)

A/D(12 bit)

46

47

48

49

50

51

52

53

54

55

5657

58

59

60

61

62

63

64

65

66

67

68

6970

71

72

73

74

75

76

77

78

79

80

81

82

8384

85

86

87

88

89

90

91

2246

2272

2298

2324

2350

2376

2402

2428

2454

2480

25052530

2555

2580

2605

2630

2655

2680

2705

2730

2756

2782

2808

28342860

2886

2912

2938

2964

2990

3017

3044

3071

3098

3125

3152

3179

32063233

3260

3288

3316

3344

3372

3400

3426

460

465

470

475

481

486

491

497

502

507

513518

523

528

533

538

543

548

553

559

564

569

575

580585

590

596

601

606

612

617

623

628

634

639

645

650

656661

667

673

678

684

690

696

701

1839

1861

1882

1903

1925

1946

1967

1989

2010

2031

20522072

2093

2113

2133

2154

2174

2195

2215

2236

2257

2278

2300

23212342

2364

2385

2406

2428

2449

2471

2493

2515

2537

2559

2581

2604

26262648

2670

2693

2716

2739

2762

2785

2806

RH(%)Output(mV)

A/D(10 bit)

A/D(12 bit)

92

93

94

95

96

97

98

99

100

3452

3478

3504

3530

3566

3595

3624

3653

3683

706

712

717

722

730

735

741

747

754

2827

2848

2870

2891

2920

2944

2968

2992

3016

RH(%)Output(mV)

A/D(10 bit)

A/D(12 bit)



69

TROUBLESHOOTING

- The error of sensor will be displayed on the front of display.when the error of sensor is detected at initial power ON, the appliance will not operated and displayof abnormal sensor part will blink.

- The appliance will not stop operating when the error of sensor is detected during operation of theappliance.But normal freezing might be not operated if the appliance is operated by the emergency operationmode. You would better to check the appliance according to the self-diagnosis of the manual.

4-2-1. If the trouble is detected by self-diagnosis

1) If ICE Maker Sensor has trouble

Bad contact of connector/ insert correctly

Is MAIN PCB ConnectorCN90 inserted correctly?

Is ICE Maker Sensorunit normal?

Is the voltage betweenMAIN PCB Connector CN90#"4"(White) and

REG1, HEAT SINK normal?

Is input voltage of IC01MICOM #78 normal?

Start

NO

YES

YES

YES

YES

Replace the temperature sensor

NO

Recheck the wire connection part

NO(0.6V > Measurement < 4.6V)

Check the iced-solder, solderbridging, disturbed solder.

NO

No trouble with PCB and temperature sensor.Recheck the bad contact of the connection.

** Measuring point of resistance value according toSensor **

ICE MAKER: CN90#1 #7 measuring resistance value** 0: Short trouble /: Open trouble

Sensor MICOM/Connector number

Voltage measured between 4.6V ~ 0.6V.

Measuring voltage of IC01 MICOM #89,CN90# ”1” (Brown) and REG1, HEAT SINK from

PCB typical Ground part are similar. Check the measure on the Resistance, R914due to

the SMD MICOM

Checking method of ICE Maker Sensorresistance CN90 "1"(Brown) "7"(Gray)- Compare the temperature table after the

measure.

DATA1.

Temperature table

ERROR Code

Refer to circuit diagram in the manual

ICEMaker

Connector CN90# ”±1”(Brown)andREG1 HEAT-SINK PCB common Ground

Checking method of ICE Maker Sensor resistance- Measure the Resistance R914(IC01 MICOM #89)

on PCB or CN90 "1"(Brown)REG1, HEAT SINK- Compare the temperature table after the measure.

Measuring voltage of CN90#4(White) REG1,HEAT SINK are below.

typical PCB Ground

REG1 HEAT-SINK



70

TROUBLESHOOTING

2) If R Sensor has trouble


Is MAIN PCBConnector CN30 and CN76 inserted

correctly?

Is R Sensorunit normal?

Is the voltage betweenMAIN PCB Connector CN30#6(White) and

REG1 HEAT-SINK normal?

Is the input voltage ofIC01 MICOM #76 normal?

Start

NO

YES

YES

YES

YES


NO



Check the iced-solder, solder bridging,disturbed solder.

NO



R : CN30#6 CN76#1 measuring resistance value** 0: Short trouble /: Open trouble



Measuring voltage IC01 MICOM #76,CN30#6(White) and REG1, HEAT SINKfrom PCB typical Ground part are similar. Check the measure on the Resistance, R311 due

to the SMD MICOM

Checking method of R Sensor resistanceCN30#6(White) CN76#1(Gray) Compare thetemperature table after measurment.

DATA1.

Temperature table

ERROR Code


R Connector CN30#6(White) toREG1 HEAT-SINK PCB typical Ground

Checking method of R Sensor resistance- Measure the voltage of Sensor Check Point #3(IC01 MICOM

#76) on PCB or CN30#6(White)REG1, HEAT SINK- Compare the temperature table after measurement.

Measuring voltage of CN30#6(White)REG1, HEAT SINKare as below.

Typical PCB GroundREG1, HEAT SINK



71

TROUBLESHOOTING

3) If R DEF Sensor has trouble



correctly?

Is R DEF Sensorunit normal?

Is the input voltage betweenMAIN PCB Connector CN30#8(Skyblue)

and REG1, HEAT SINK normal?

Is the input voltage of IC01MICOM # 74 normal?

Start

NO

YES

YES

YES

YES


NO



Check the iced-solder, solder bridging,disturbed solder.

NO



R-DEF : CN30#8 CN76#1 measuringresistance value** 0: Short trouble /: Open trouble

Sensor MICOM/Connector Number


Measuring voltage of IC01 MICOM #78CN30-"8"(Sky-blue) and REG1, HEAT SINK fromPCB typical Ground part are similar.Check the measure on the Resistance R313 due to the

SMD MICOM

Checking method of R Sensor resistanceCN30#8(Sky-blue) CN76#1(Gray)- Compare the temperature table after

measurement.

DATA1.

Temperature table

ERROR Code


R DEF Connector CN30-"8"(Sky-blue) andREG1, HEAT SINK PCB common Ground

Checking method of R DEF Sensor resistance- Measure the resistance R313(IC01 MICOM #78) on PCB orCN30#8(Sky-blue)REG1, HEAT SINK

- Compare the temperature table after measurement.Measuring voltage of CN30#8(Sky-blue)REG1, HEAT SINKare as below.


Start

YES

YES

YES



72

TROUBLESHOOTING

4) If Ambient Sensor has trouble


Is MAIN PCBConnector CN31 inserted

correctly?

Is Ambient Sensorunit normal?

Is the voltage betweenMAIN PCB Connector CN31#1(Yellow)



Start

NO

YES

YES

YES

YES


NO

Recheck the wiring connection


Check the iced-solder, solderbridging, disturbed solder

NO

No trouble with PCB and temperature sensorRecheck the bad contact of the connection


Ambient : CN78#8 #12 measuring resistance value** Placed in the right top table of upper hinge.** 0: Short trouble /: Open trouble



Measuring voltage of IC01 MICOM CN78-"8"(Yellow)and REG1, HEAT SINK fromPCB typical Ground part are similar.Check the measure on the Resistance, R315 due to

the SMD MICOM

Checking method of Ambient Sensor resistanceCN78-#"8"(Yellow) # "12"(Yellow)- Compare the temperature table after

measurement.

DATA1.

Temperature table

ERROR Code


Ambient Connector CN78-"8"(Yellow) toREG1, HEAT-SINK PCB typical Ground

Checking method of Ambient Sensor voltage- Measure the voltage of Resistance R315(IC01 MICOM #91) onPCB or CN78-"8"(Yellow)REG1, HEAT SINK

- Compare the temperature table after measurement.Measuring voltage of CN78-"8"(Yellow)REG1, HEAT SINKare as below

Typical PCB Ground

REG1 Heater Sink

Start

YES

YES

YES



73

TROUBLESHOOTING

5) If F Sensor has trouble


Are MAIN PCBConnector CN30 and CN76

inserted correctly?

Is F Sensorunit normal?

Is the voltage betweenMAIN PCB Connector CN30#3(Red) and



Start

NO

YES

YES

YES

YES

Replace temperature sensor

NO




NO

No trouble with PCB and temperature sensorRecheck the bad contact of the connection


F :CN30#3 CN76#1 measuring resistance value** 0: Short trouble /: Open trouble



Measuring voltage of IC01 MICOM #74,CN30#3(Red) and REG1, HEAT SINK fromPCB typical Ground part are similar.Check the measure on the Resistance, R309 due to

the SMD MICOM

Checking method of F Sensor resistance CN30-

"4"(Red) CN76-"1"(Gray)

- Compare the temperature table after measurement.

DATA1.

Temperature table

ERROR Code


F Connector CN30#3(Red) toREG1, HEAT SINK PCB typical Ground

Checking method of F Sensor voltage- Measure the voltage of Resistanec, R309(IC01 MICOM #74) on PCB orCN30-"4"(Red)REG1, HEAT SINK

- Compare the temperature table after measurement.Measuring voltage of CN30-"4"(Red)REG1, HEAT SINK are as below.

Typical PCB Ground

REG1 Heater Sink

Start

YES

YES

YES



74

TROUBLESHOOTING

6) If F DEF Sensor has trouble


Are MAIN PCBConnector CN30 andCN76 insert correctly?

Is F DEF Sensorunit normal?

Is the voltage betweenMAIN PCB Connector CN30#4(Orange) and



Start

NO

YES

YES

YES

YES


NO




NO



F-DEF : CN30#5 CN76#1 measuring resistancevalue

** 0: Short trouble /: Open trouble



Measuring voltage of IC01 MICOM #75,CN30-"5"(Orange) and REG1, HEAT SINK fromPCB typical Ground part are similar.Check the measure on the Resistance, R310 due to

the SMD MICOM

Checking method of F DEF Sensor resistanceCN30-"5"(Orange) CN76#1(Gray)- Compare the temperature table after

measurement.

DATA1.

Temperature table

ERROR Code


F DEF Connector CN30-"5"(Orange) toREG1, HEAT SINK PCB typical Ground

Checking method of F DEF Sensor voltage- Measure the voltage of Resistance, R310(IC01 MICOM #75) on

PCB or CN30-"5"(Orange)REG1, HEAT SINK- Compare the temperature table after measurement.Measuring voltage of CN30-"5"(Orange)REG1, HEAT SINK areas below

Typical PCB GroundREG1, Heater Sink

Start

YES

YES

YES



75

TROUBLESHOOTING

7) If Ice Room Sensor has trouble



correctly?

Is Ice Room Sensorunit normal?

Is the voltage betweenMAIN PCB Connector CN31-”3”(Orange)



Start

NO

YES

YES

YES

YES


NO

Check the wiring connection



NO

No trouble with PCB and temperature sensor.Check the bad connections.


Ambient : CN78#10 CN76#1 Measure theresistance value** 0: Short trouble /: Open trouble



Measuring voltage of IC01 MICOM #90,CN78-"10"(Orange) and REG1, HEAT SINK fromtypical PCB Ground are similar. Check the measure on the Resistance, R316 due

to the SMD MICOM

Checking Mehod of Ice Room Sensor voltageCN78-"10"(Orange) CN76-”1” (Gray)- Compare with the temperature table after

measurement.

DATA1.

Temperature table

ERROR Code

Refer to the circuit diagram in this manual

Ice Room Connector CN78-"10"(Orange) and REG1,HEAT SINK from typical PCB Ground

Checking Method of Ice Room Sensor Voltage- Measure the Resistance, R316(IC01 MICOM #90) on PCB orCN78-"10"(Orange)REG1, HEAT SINK

- Compare with the temperature table after measurement.Measured voltage of CN78-"10"(Orange)REG1, HEATSINK are as below


Start

YES

YES

YES



76

TROUBLESHOOTING

8) If Flex Sensor has trouble


Is MAIN PCBConnector CN30 and CN76 insert

correctly?

Is Pantry Sensornormal?

Is the voltage betweenMAIN PCB Connector CN30#9(Whiteblack)


Is the input voltage of IC01MICOM Pin# 73 normal?

Start

NO

YES

YES

YES

YES


NO




NO



Flex : CN30#9CN76 #1 measuring resistance value** 0: Short trouble /: Open trouble



Measuring voltage of IC01 MICOM #81,CN30-"9"(Yellow) and REG1, HEAT SINKfrom PCB typical Ground part are similar.Check the measure on the Resistance, R314 due to the

SMD MICOM

Checking method of Flex Sensor resistanceCN30-"9"(Yellow) CN76#1(Gray)- Compare the temperature table after measurement.

DATA1.

Temperature table

ERROR Code


Pantry Connector CN30-"9"(Yellow) toREG1 HEAT SINK PCB typical Ground

Checking method of Flex Sensor voltage- Measuring resistance, R314(IC01 MICOM #81) on PCB orCN30-"9"(Yellow)REG1, HEAT SINK

- Compare the temperature table after measurement.Measuring voltage of CN30-"9"(Yellow)REG1, HEAT SINKare as below

Typical PCB GroundREG1 Heater Sink

Start

YES

YES

YES



77

TROUBLESHOOTING

9) If Humidity Sensor has trouble

ERROR Code

Bad contact of connector /insert correctly

Is MAIN PCB ConnectorCN30 to CN30 inserted

correctly?

Is Humidity Sensorunit normal?

Is the voltage betweenMAIN PCB Connector CN30-”3”(Brown) and REG1, Heat

Sink normal?

Is input voltage ofICO1 MICOM #73 normal?

Start

NO

YES

YES

YES

YES

DATA2. Humidity Sensor Table

Replace the Humidity Sensor

NO

Recheck the PCB & Wire Terminal connection

NO (1.0V > Measurement < 3.5V)

Check the iced-solder, solderbringing, disturbed solder

Exchange the PCB

NO

No trouble with PCB temperature sensor.Recheck the bad contact ofthe connection

** Measuring point of resistance value according toSensor"

Humidity : CN30#1 #3Resistance value with opened : about 50** 0: Short trouble /: Open trouble


Voltage measured between 3.5V ~ 1.0V

Measuring voltage of ICO1 MICOM #73,CN30-"3"(Brown) and REG1, HEAT SINK fromPCB typical Ground part are similar. Check the Resistance, R321

Checking method ofHumidity Sensor resistanceCN30-"3"(Brown) "1"(Gray)- Compare the temperature table after the measure.


Humidity Connector CN30-"3"(brown) toREG1 HEAT-SINK PCB typical Ground

Start

YES

YES

YES

Checking method ofHumidity Sensor voltage.- Measure the voltage of Resistance, R321(IC01 MICOM #73)on PCB or CN30-"3"(Brown)REG1, HEAT SINK

- Compare the temperature table after the measure.Measuring voltage of CN30-"3"(Brown)REG1, HEAT SINKare below

Typical PCB Ground

REG1 HEAT-SINK



78

TROUBLESHOOTING

10) Mid Drawer Room Damper Heater has trouble

Is Damper Heaternormal?(about135ohm)


Start

NO

YES

YES

YES


NO

1) Recheck the wire2) Replace PCB MAIN

NO

Normal(recheck)

Measure the resistance

between- after

CN77 connector open 135ohm 7%

ERROR Code

Checking method of Flex Room Damperresistance CN77-"1"(Black) "2"(Brown)**: Open(wire disconnection,heaterdisconnection) trouble / 0: Short trouble

Start

YES

YES

YES

Initialpower On Heater off Working

heater

3.5V ~4.8V

MICOM#48

condition3.5V ~4.8V 0V

Is MAIN PCB connector(CN77) inserted correctly?

Is Tank Water Heaternormal?(about72ohm)



79

TROUBLESHOOTING

11) Ice Duct Heater(option) has trouble

Is MAIN PCBconnector (CN51,CN79,CN76)

inserted correctly?

Is the input voltage of IC01MICOM #50 normal?

Start

NO

YES

YES

YES


NO

1) Recheck the wire2) Replace PCB MAIN

NO

Normal(recheck)

ERROR Code

Checking method of Flex Room Damperresistance CN51-"2"(Brown) CN79-"2"(Yellow)

**: Open(wire disconnection, heaterdisconnection) trouble / 0: Short trouble

Start

YES

YES

YES

Is Tank Water Heaternormal?(about 60ohm)

Is Tank Water Heaternormal?(about72ohm)

Heater

Connector

ohm

Ice Duct

CN51-#2CN79-#2

60ohm 7%

Heater Micom(IC01)

Initialpower On

Heateroff

Workingheater

#50 3.5V ~4.8V

3.5V ~4.8V

0VIce Duct



80

TROUBLESHOOTING

- The refrigerator of this model has BLDC FAN motor. BLDC motor is driven by DC 7~12V.

- On the normal condition of COMP ON, it operates together with F-FAN motor.

If door is opened and closed once at a high ambient temperature, it will be operated after 1 minutedelay.

Therefore, you are advised not to taken it for an error.-. If there is a trouble, you should select the self-diagnostic function to check the trouble before power off.

4-2-2. If FAN does not operate

Start

Is COMPRESSOR ON ?

Door & MICOM State

Door

F FAN pulse voltageCN76#7(Brown)

The voltage measured around 2~3Vwith multi-meter though the voltage isvery weak because of pulse signal

Display for checking the self-diagnostic function


FMICOM(#83)

Close

Open

5V(High)

0V(Low)

0V(Low)

5V(High)

R MICOM(#82)

Right and Left

Execute manualoperation

FAN work normally

Repair the connectionof Door switch

Replace MAIN PCB

1) F-FAN


Power ON with 5 minutesdelay after power OFF.For preventing the overload of compressor)

Expected causesCheck that if FAN-MOTOR has failure

itself.Check that if wiring connection has bad

contact.Check the input of the fan motor rotation

pulse when motor fan operates.

CN76-7(F),8(R),9(C)will generate the pulse signal when motor rotates.These signals will be inputted into MICOM.Unless signals are not inputted during motor operating, will be ON 10seconds after fan Off. But if signals are not still entered, the aboveoperation will restart four times more.If signals are not entered continuously, the motor will be restarted after10 Minutes. This function is effective when the normal operation of motorwould be restrained by foreign matters such as ice.

Checking method of R,F,C FAN Motor voltageThe voltage between PCB typical Ground REG1 Heater Sink andF FAN ; CN76#3(Yellow) shall be less than DC 7~12V.R FAN ; CN76#4(Orange) shall be less than DC 7~12V.C FAN ; CN76#5(Sky-blue) shall be less than DC 7~12V.- Recheck if resistance values are different after measuring.

Is the voltage between MAINPCB REG1 Heater Sink and CN76#3

(Yellow) around DC7~12V?

Is the voltage between MAINPCB REG1,Heater Sink and CN76#4

(Orange) around DC7~12V?

Is the voltage between MAINPCB REG1, HEAT SINK and CN

76#5(Sky -blue) around DC7~12V?

Is the external temperatureabove 66.2(19 )?

Recheck after 5 minutes

(Time could be delayed

depending on the

temperatures. If the

temperature is lower, It

may not operate : about

59 (below 15)

Is the voltage between MAINPCB REG1,Heater Sink and CN

30#2 (Purple) around 0V?

Is the voltage between MAINPCB REG1 Heater Sink and CN30#1

(Black) around 4.5~5V?

Does DC7~12V alternate withbelow DC 2V between MAIN PCB REG1

Heater Sink and CN76 #3(Yellow)

Does DC7~12V alternate with belowDC 2V between MAIN PCB REG1 Heater

Sink and CN76#4(Orange)

Does DC7~12V alternate with belowDC 2V between MAIN PCB REG1 Heater

Sink and CN76#5(Sky-blue)

In initial power to appliance, the compressorand fans of fresh food/ freezer, compressorfan operate. If freezer temperature is sensedof 41 by momentary power failure, fanswill operate after 5 minutes.

Reference

2) R-FAN 3) C-FAN

R FAN ERROR

F FAN ERROR

C FAN ERROR



81

TROUBLESHOOTING

4-2-3. If ICE Room Fan does not operate

- This refrigerator has BLDC FAN motor. BLDC motor is driven by DC7~12V.

- When COMP ON, normally operates with F-FAN motor.

- If there is any trouble, you should select the self-diagnostic function to check the trouble before power off.

Start

Execute manual operation

No

Yes

Yes

No

Yes

Yes

No

No

Is COMPRESSOR ON ?

Is the Ice Roomtemperature suitable for

the Fan working?

Predicted Cause FAN-MOTOR troubles itself Bad wiring connections.Wrong Input of the fan motor rotation pulse

Reference

CN76 #6 will generate the pulse signal when motor rotates.These signals will be input into MICOM.Unless signals are not input during motor operating, will be ON10seconds after fan OFF. But if signals are not still taken, theabove operation will be retried four times more. If signals are nottaken continuously, the motor will be restarted after 10 minutes.This function is against the case that motor movement would berestrained by foreign matters like ice.

- When pressing the ICE TEST S/W for a certain period of time

(over 1.5sec), the function is accomplished. After beginning of

TEST mode, Ice maker heater turns on for initial 2 minutes, if the

ice making temperature is below 0.

- If it exceeds 0, Ice maker heater turns on for initial 30 seconds.

- After Ice maker heater turns on for 30 seconds, it turns off and

then Ice maker motor turns on.

- As the Ice maker motor turns on, TEST MODE COUNT operates.

(6 minutes count)

Condition

- Ambient temperature : 32 /75%

- Notch : 2 /38(-19.0 /3.3)

Initial full of ice bucket capacity : 794 g, 58ea

Is the voltage betweenMAIN PCB REG1 Heater Sink and

CN76-”2” (Black) around

DC7~12V?

Does DC7~12V alternatewith below DC2V between MAIN PCB REG1

Heater Sink and CN76-”2”(Black)?

FAN works normally

Operationtemperature/ready

Replace MAIN PCB

FAN pulse voltageCN76-”6”(Pink)


Ice Room control temperature

Ice ON 8.6(-13)

Ice OFF 26.6(-3)

The voltage is variable due to pulsesignal but measured about 2~3V with theMulti-Meter.

Display for checking the self-diagnostic function

Checking method of Ice Room FAN Motor Voltage with the voltage between typical PCB GroundREG1 Heater Sink and Ice Room FAN ; CN7~12V(Black) shall be less than DC 6~12V.- Additional check if resistance values are different after measurement.


1) Ice Room - FAN

Ice Room FAN ERROR



82

TROUBLESHOOTING

- This refrigerator has BLDC FAN motor. BLDC motor is driven by DC10~12V- When COMP ON, normally with F-FAN motor.

4-2-4. If FAN does not operate(Flex Room - FAN)

Start

Execute manual operation

No

Yes

Yes

No

Yes

Yes

No

No

Is COMPRESSOR ON ?

Is the FlexRoom temperature suitable for

the Fan working?

Predicted Cause FAN-MOTOR troubles itself Bad wiring connections.Wrong Input of the fan motor rotation pulse

Is the voltage betweenCN79-"1"(Orange) and "3"(Blue)

(Black) around DC10~12V?

Does DC7~12V alternatewith below DC2V between CN79-

"1"(Orange) and "3"(Blue)

FAN works normally

Operationtemperature/ready

Replace MAIN PCB

Flex Room control temperature

Sort Micom(IC01)

Initialpower On

Heateroff

Workingheater

37(3)

42(6)

27(-3)

32(0

Temperaure

Checking method of Flex Zoon FAN Motor Voltage with the voltagebetween CN79-"1"(Orange) and "3"(Blue) shall be less than DC10~12V- Additional check if resistance values are different after measurement.

1) Flex Room - FAN



83

TROUBLESHOOTING

1. Water is automatically supplied to the Ice Maker depending on temperature & time condition and Ice MakerDispenses cubed or crushed ice.

2. Power is applied to the one end of wires. Be careful when disassembling and shall refer to its explodeddiagram in any case.3. Ice Maker operation shall be checked after pressing the Ice Maker testing switch.

(Fridge Ice Maker) It is not possible to check when the power is disengaged.4. We recommend that TWO PEOPLE check the PCB and Ice Maker because they are located at front and rear

side each.5. Be careful! The Ice Maker Heater can cause personal injury like burn.

4-2-5. If Ice Maker does not operate

Checking Method of ICE Maker VoltageWith typical PCB Ground REG1 Heater Sink and1) Test Switch operation (press selected) : CN90-"2"(Black) shall be DC 0V.

Test Switch ready ; CN90-"2"(Black) shall be less than DC 5V.

Checking Method of ICE Maker VoltageWith typical PCB Ground REG1 Heater Sink and2) IC02 MICOM #39 voltage ; Ready(0V) Rotate (4.9V) Before

complete(4.9V) Return(0V)* MICOM #39 voltage is same as Connector CN90-”7”(Purple)

3) IC02 MICOM #38 voltage ; Ready(0V) Rotate (0V) Beforecomplete(4.9V) Return(0V)* MICOM #38 voltage is same as Connector CN90-”6”(Blue)

1)Test Switch operating 1)Test Switch readyTypical PCB GroundREG1 Heater Sink

Displays ERROR Code

Start

1) Replace the Ice Maker Kit2) Check/Replace the Main PCB

input signal(Micom IC01 Pin #37 - “0V”)

Does Ice Makerrotate when pressing the Ice Maker

testing switch(over 1.5 sec)?

No

1) Check the wiring connections.2) Replace Ice Maker Kit3) Replace MAIN PCB

Is the input voltage of IC01MICOM #38,#39 normal?

No

1) Replace the Water Valve* Refer to the operation

condition of Water Valve2) Replace the Main PCB

Is the water supplied in 6minutes (After sensing ice bucket

fully)?

No

1) Repair the Ice Maker Sensor* Refer to the solution “If Ice

Maker Sensor has trouble”

No trouble with PCB and temperature sensor,Check the bad wiring connections.

Is the Ice Maker Sensor unit normal?No

Operating Condition when motor rotatesOperating Status of Micom(IC01)

Heater operates differently according to theconditions. Test Mode operation will be 30 sec.

Ready

0V

0V

0V

Operation

5V

5V

5V

Heater Load(#85)

Motor CCW Load(#101)

Motor CW Load(#102)

MICOM(IC02) Operation Status

#37

(Test Switch)

Operation

5V

Ready

0V

MICOM(IC01) Operation Status

#39

(Blade Ice Scoop)

#38

(Guide Ice Full)

Ready RotationBefore

CompleteReturning

0V 4.9V 4.9V 0V

0V 0V 4.9V 0V

Check the ICE Maker Heater & Motor Resistance

1) Measuring the Ice Maker Heaterresistance values

CN70-"3"(Black) "13"(Black)

Resistance value : 91(365)Ohm 30% Resistance value : 3.5KOhm 7%

CW :CN73-"11"(Brown) CN70-"11"(RedCCW:CN73-"13"(White) CN70-"11"(Red)

2) Measuring the Ice Maker Motorresistance values

Yes

Yes

Yes

Yes



84

TROUBLESHOOTING

- If defrost has trouble, select the self-diagnostic function to detect the error of defrost heater beforePower Off. (Check the function with the self-diagnostic function)

4-2-6. If defrost does not operate (F,R DEF Heater)

R DEF ERROR F DEF ERROR

Start

Are the all deforstheater normal?

Check the bimetal, heaterdisconnection, wiring connection etc.

Refer to self-diagnosticfunction in the manual

Replace theapplicable sensor

manual operation for a certain time

Manual defrosting of fresh foodand freezer compartmentsoperate simultaneously.

If Energy Saver + Power Cool Key are pressedsimultaneously for 8 seconds and then select any key, 3rdtest mode(manual defrosting) will be operated.

Is the temperature ofdefrost sensor lowerthan 53.6(12°C)?

Is defrost sensor byself-diagnostic normal?

Is power applied toeach defrost heaters?

Is connection terminal ofMAIN PCB part normal?

Recheck the applicablesensor.

Normal

Repair connection terminal

Reference If defrost sensortemperatures of fresh food andfreezer compartments are higherthan 50(10), 53.6(12) bythe heating from heater, heatingwould be finished and will returnto cooling operation after a pause.

Check bimetal, heater itself,disconnection etc.

Replace failure Relay orreplace PCB ASS'Y

Does the system returnto cooling operation after heating

for specified time?

Checking method of F,R DEF Heater resistance valueCN70-"9"(Brown)CN70 "13"(Gray)CN70-"7"(White)CN70 "13"(Gray)- Recheck if resistance values are different after the test

1) F DEF Heater 2) R DEF Heater

Resistance value of sensor according to temperature

If you need the

temperature with detail,

refer to DATA1. temperature

table

86(30)

68(20)

50(10)

32(0)

14(-10)

-4(-20)

-22(-30)

4.22

6.05

8.87

13.29

20.42

32.23

52.41

**Measuring point of resistance value according to sensor **F-DEF : CN30#5CN76#1 measuring resistance valueR-DEF : CN30#8CN76#1 measuring resistance value** 0: Short trouble /: Open trouble

**Measuring point of resistance value according to heater**F-DEF : CN70#9(Brown)CN70#13(Gray) measuringresistance value(63 ohm 7%)R-DEF : CN70#7(White)CN70#13(Gray)measuring resistance value(120 ohm 7%)** 0: Short trouble /: Open(bimetal, heater) trouble

Reference to the manual “Self-Diagnostic”



85

TROUBLESHOOTING

4-2-7. If Power is not supplied

CautionAt the power of main PCB, the AC115Vpower and a high-voltage over DC 170Vare occurred.Please take care of yourselfduring repair and measurement.

Check in SMPS PBA

Start

- Refer to the function andreference parts in the manualwhen check the MAIN PCB

Connect plug again,check the plug loosening

Check the assembly and wireconnection

1) Replace FUSE AC 250V 2.0A2) Replace PCB ASS’Y

Replace PCB ASS'Y

Replace PCB ASS'Y

1) Check REG1 (KA7805)2) Replace PCB ASS'Y

1) Check assembly wire and repair2) Replace Panel PCB

1) Solder again2) Replace PCB MAIN

- Check MAIN PCB connection- Check the connections betweencabinet and door

- Check the connections betweendoor and panel PCB

1) Check the contact of lead wire2) Replace the applicable relay / PCB MAIN

1) Check PCB PATTERN and replace BD12) Replace PCB ASS'Y

Is the plug connected in?

Is power 115V appliedto the both terminals of SMPS

PCB CN70

Is fuse on the SMPSPCB down?

Is DC170Vapplied to the bothterminals of BD1+,-

Is DC5.8Vapplied between TOPswitch 246Y C and S?

Is 12V applied to the bothterminals of C107?

Is 5V applied to the bothterminals of TD102?

Does Panel PCBoperate normally?

Is the load (i.e. Relay)normal?

Is there anyPCB soldering, short,

breakage?

Normal(Recheck)

Checking method of voltageCN70 - "11"(Red) "13"(Gray) AC voltage

Checking method of DC 2nd output voltageREG1 input ; Regulator 7805 same as C107terminals. DC 12.0V 0.8V

Checking method of DC 2nd output voltageREG1 output ; Regulator 7805 same asTD102terminals. DC 5V 0.5V



86

TROUBLESHOOTING

4-2-8. If compressor does not operate

Refer to test functionin the manual

Voltage checking methodCommon Ground REG1 Heater Sink in PCB and1) IC01 MICOM #4 ; Square wave voltage 3Vmeasured after MULTI TEST

IC01 MICOM #4, COMP operatesCommon PCB GroundREG1 Heater Sink

Start

Check after 7 minutes

Did 7 minspass after Compressor

OFF ?

No

Yes

No

Check bad contact of connector

Check bad contact of connector

No

No

No

No

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Does compressorwork with manual

operation?

Is CN75 PIN #4High?(2.5V)

No

No

Normal

Refer to the DIODE voltage

value in the IPM

No

Replace COMP ASS'Y

NoIs COMP ASS'Ynormal?

300K-F(CHIP):INVERTER PCBR301,302,303,304,305,306,307

Did buzzer of manual operation sound?(Check certainly after manual operation)



87

TROUBLESHOOTING

IPM FREEWHEELING DIODE VOLTAGE VALUE



88

TROUBLESHOOTING

4-2-9. When alarm sounds continuously without stop(related with buzzer sound)

Start

Door is ajar

Start

Is door closedcompletely?

Is water penetratedinto the door switch?

Is the doorswitch unit normal?

Is the connector CN76inserted correctly?

Is manual operation /defrost selected?

Does buzzer soundswhen power On again?

Is the inputvoltage of main #53,#52,#51changed at door-open and

close status?

If 'ding-dong'sound continuously

If 'beep-beep' sounds continuously

Remove causes after comprehendingthe conditions of interferance by doorgasket, food etc,

Replace Door S/W

Repair wire connection andDoor S/W

Normal

Recheck and Replace PanelPCB

MAIN PCB & Door S/W is normal.Recheck and replace Panel PCB

Seperate the door switch andcheck ifthe measured value of unit ischanged from 0 toaccording to switch ON/OFF.* FF Door Switch is magnetic switch.(It can be operated when doormagnet is combined with it.)

Replace Door S/W

Connector is not inserted,Repair disconnect part

Enforce the cancelation themanual operation/ defrost functionor power On after power Off

DoorFZ

MICOM(#53)Mid Drawer

MICOM(#51)

FF

MICOM(#52)

Right and

Left

Door & MICOM State

Close

Open

5V(High)

0V(Low)

0V(Low)

5V(High)

0V(Low)

5V(High)



89

TROUBLESHOOTING

If buzzer does not sound

Buzzer is installed on the panel PCB in this model.If buzzer does not sound even though the button is pressed, manual operation is started and dooris opened, it should separate panel PCB and check the breakage of buzzer and bad soldering.It is very hard to repair the panel PCB because it consists of SMD assemblies.It is recommended to replace PCB assembly when the failure associated with panel is occurredexcept the minor error such as switch pressing error, surface peeling off and so on.

Start

Does it sound'dingdong' if press a button

on the front panel?

Is there any damageor breakage of the buzzer in

the panel PCB?

Did lead of a componentfall on the vibration plate of

buzzer?

Does it makea sound of 'dooropen'

alarm when you are opening the doorof freezer or Fridge more than 3

minutes?

MAIN PCB normal,BUZZER normal

Check the panel PCB with referenceof <how to check Panel Display>

Replace Panel PCB

Replace Panel PCB

Recheck the button pressingforce and mechanical problem



90

TROUBLESHOOTING

You should check the display after door opening because the display of this model operatesonly when the fresh food compartment door is opened.

Start

Does Fresh food &Flex zone Door switch operate

normally?

Is the connectorof Mid Drawer Room inserted

correctly

Is MAIN PCBConnector (CN51) inserted

correctly?

Is signal of MAINPCB CN51 normal?

Is the lightingoperated when replace Pantry

Panel-PCB?

Is a key pressedcontinuously?

Is the PCB systemstill operated by separating

of the mechanism?

Is the lighting operatedafter replacing the Pantry

Panel-PCB?

Is a normal voltageoutputted from MAIN PCB IC74

during the key operating?

Check and repair the switch* Refer to<how to repair door switch>

Reinsert Connector,Repair bad contact

Reinsert connector in MAIN PCB

Check voltage/Replace MAIN PCB

Panel PCB itself has trouble.

Reassemble PCB ASS'Y / Enforce the cancelation ofpressed keys

Reassemble PCB ASS'Y / Enforce the cancelation ofpressed keys

Convertible compartment PanelPCB itself has trouble.

Replace MAIN PCBCheck the short of MAIN

Panel wire

Check the wires of Flex Room - disconnection, short between wiresRecheck the control circuit of MAIN PCB Flex PanelCheck the wire assembling between Panel and MAIN

Check the wire of Pantry Room - disconnection, short betweenwires

Check the short/open of the pantry panel lighting circuit in MAIN PCB.

If Panel PCB Key is not selected If it is not repaired with the above basic checking method

If Panel Key is not selected

Checking method of voltage Based on PCB typicalGround REG1 Heater Sink1) Key voltage ; CN51-"11"(Sky Blue)

a) Working: 2V0.5V b) Normal: 0V

Common PCB GroundREG1 Heater Sink

The Voltage of KEY isWorking every 2msec/4min



91

TROUBLESHOOTING

4-2-10. When refrigerator ROOM Lamp does not light up

When controlling the regrigerator light with Regulator(12V) : LED LAMP

Applying to the FF/FZ/Mid Drawer compartment (Option)

* If the Vegetable Lamp does not work properly, check the FF compartment LED Lamp because it is

connected with the FF compartment LED Lamp in parallel. Refer to the circuit diagram to repair.

Start

Check/Replace REED S/W,Magnet ASSY

Does theDOOR S/W sense properly?

(Open/Close)

No

Replace/Repair the PCB

No

Replace/Rep air the PCB.Repair IC76

No

Check the connector terminalReplace PCB

No

Check theconnector terminal

No

Replace LED LAMP

Normal

1) Measuring IC76 voltage(CN-”3” (Red)/FF LED) MeasuringIC77 voltage(CN78-"1"(Brown)/FZ LED) MeasuringIC78 voltage(CN78-"6"(White-Black)/Mid Drawer LED)

CN76-"12"(Purple) (FF Door Switch) Typical PCB Ground REG1 Heater Sink

FF LED Lamp ON

Close

No

Check the wireRe-insert the connector

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Is the outputvoltage of IC01 MICOM #52

normal?

Is the outputvoltage of IC76

normal?

Is the MAINPCB connector(CN78) inserted

properly?

Does the MAINPCB connector(CN78) output

properly? (11~12V)

Is the LED LAMPconnected properly?

Is the LED LAMP normal?

FF LED Lamp OFF

Open

Door & MICOM State

Door

Close

Open

MICOM(#52)

Right and Left

0V(Low)

5V(High)

MICOM State

Door(Right and

Left)

Close

Open

FF

#52

0V (Low)

5V (High)

FZ

#53

5V (High)

0V (Low)

Mid Drawer

#51

0V (Low)

5V (High)

IC76(FF)/IC77(FZ)/IC78(Mid Drawer) State

IC76(FF)/IC77(FZ)/IC78(Mid Drawer)

0V(Low)

11~12V(High)

Micom

0V(Low)

5V(High)



92

TROUBLESHOOTING

4-2-11. If ICE Water is not supplied

Start

Is the confirming sound ofthe valve operation heard whenIce maker test switch pushed?

Does Main PCB IC01MICOM #7 voltage change

5V/0V?

Does Main PCB IC01MICOM #104 voltage have

high(5V) output?

Is the contact point of main

PCB RELAY RY78 normal?

Does Main PCBIC73 #15 have about 0.7V

output?

MAIN PCB normal-- Need to check the other parts Check the wire between Ice

water valve MAIN PCB Ice water valve itself has trouble

or bad contact of connector Check the connection hose

Normal(Check Icewater valve hose)

Check solderingshort/Replace PCB


Check soldering

short/Replace PCB


Typical PCB Ground REG1 Heater Sink

Checking method of voltage Based on PCBtypical Ground REG1 Heater Sink1) Check the voltage of IC73#4(same voltage as

IC01 #104)- ICE Water valve operating (about 5V0.5V)

Based on PCB typical Ground REG1 HeaterSink2) IC73 #15 voltage- ICE Water valve Waiting (about 12V0.8V)- ICE Water valve operating (about 0.7V0.5V)

3) Check the voltage of Water Valve operating(AC voltage)=> For checking the Relay RY78 operating.CN73 and CN74 combined and use sameconnector(13p)CN70-"11"(Red) CN73-"7"(Purple)- ICE Water valve waiting (about AC 0V)

1. Please shut the water supplying prior to repair.

2. Power is applied to the one end of wires. Be careful when disassembling not to get an electric shock.



TROUBLESHOOTING

4-2-12. If Cubed or Crushed Ice is not supplied

93

Start

Check the Ice making switchCheck the DOOR SwitchCheck the Ice moving motorCheck the wiring connections of Ice moving motorCheck if the COVER ICE ROUTE opensCheck the Q706 movement related with

AUGER_MOTOR safety Check the water pipe: bending / Shut off

heck route of ice check solenoid Check he Ice Maker wiring

Fridge door shall beclosed during operation.

If MAIN PCB is normal- Need to check the other parts AUGER MOTORMAIN PCB

Check the door wiring connections. CUBE MOTORMAIN PCB

Check the door wiring connections/trouble their own or bad wiring connections.

Normal Operation status

Are Ices ejected?

Which mode isselected?

Is Cubed Ice ejected?

No

Cubed Ice ejected

Crushed Ice

Cubed Ice selected

Is Cubed Ice modeselected on the

panel PCB?

No

Cubed Ice

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Check the wire connections/ Cube Solenoid

Is the CUBE MOTORpositioned at cubed

ice mode?

No

- Check the Ice switch has trouble itself- Check the wire connections- Replace the MAIN PCB

- ICE S/W self diagnosis- Check the connecting wires.- MAIN PCB failure : Replace

Is MICOM IC01 #103change into 0V when

press Ice switch?No

Is the DispenserCover opened?

No

Replace the MAIN PCB(Errors on IC01)

Is IC73 #1,2 changedinto 5V when pressing

Ice Switch?

No

- RY7A, RY7B RELAY Error- Replace the MAIN PCB

After disconnecting theCN71, CN73 measureThe both ends ofContact points.

After disconnecting theCN71, CN73 measureThe both ends ofContact points.

Is the contactpoint of RY7A & RY7B RELAY

changed into 0

No

No

No

Yes

Yes

No

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

Normal Operation status

Cancel the “Ice Off”

Is Crushed Ice ejected?

Crushed Ice selected

Is Crushed Ice modeselected on the

panel PCB?

Check the wire connections/ Motor Cube

Is the CUBE MOTORpositioned at cubed

ice mode?

- Check the Ice switch has trouble itself- Check the wire connections- Replace the MAIN PCB

Is MICOM IC01 #103change into 0V when

press Ice switch?

check the WIRE & Motorcheck Cover ice route S/W 1,2

Replace the MAIN PCB

Is the DispenserCover opened?

Replace the MAIN PCB(Errors on IC01)

Is IC73 #2 changedinto 5V when pressing

Ice Switch?

- RY7A RELAY Error- Replace the MAIN PCB

Is the contactpoint of RY7A RELAY

changed into 0

Are Ices in the Ice bucket?

Is “Ice Off” modeselected on the display

panel?

No



94

TROUBLESHOOTING

4-2-13. If Cover Ice Route Motor(Geard Motor) is not working normally

Start

Replace the MOTOR

Does GEARED MOTORwork properly?

No

Yes

Cubed or Crushed Ice is selectedon the LED PANEL PCB

Is Cubed or CrushedIce mode selected on the

LED PANEL?

No

Yes

Select the DISPENSER switch

Is the DISPENSERswitch selected?

No

Yes

Check the WIRE

Does the wiring at theboth sides of motor connected

properly?

No

Yes

When the MOTORrotates.

Check the MOTOR/Check anyinterference on MOTOR rotation

Check CN73 -"9" Connector / Re-connect

Check the short/open for the SSR75 of Cover Ice Motor on Main PCB.

Check the resistance of parallel Connector CN73 -"9", CN70 -"11"

(Definitely plug out prior to repair)

Caution1. When replacing the Cover Ice Motor, pull out the plug to avoid an electric shock.2. Be careful! When disassemble the Cover Ice Motor, spring can jumped out and may cause personal injury.

3. Motor will rotate continuously when the Motor Switch is not sensed.

Main PCB - Check the wire OPEN/SHORT between the Cover Ice Motor Rotation sensing switches.

Check the Short of Cover Ice Motor Control Circuit SSR75 in the MAIN PCB.

Replace the MAIN PCB or the Dispenser Cover Motor.

Is the AC input voltageapplied to the both ends

of the motor?

Yes

No

Check/Repair the Housingconnector

Is the sensingSWITCH connection

normal?

No

Yes

Check/Repair the Motor Rotationpressing area

Is the switchpressed area normal when

motor rotates?

No

Yes

Normal

Are the voltageREG1 Heater Sink and CN50-”9”,

“10” normal?

Yes

No

Operating Condition of DispenserOpen/CloseCN50 - Switch 1,2 Operating

OpeningClose

Ice Route Switch 1CN50 - “9” (Purple)

Ice Route Switch 2CN50 - “10” (White)

0V 0V5V

0V 0V5V

Checking Mehod of Cover Ice Route MotorResistance(Make sure to work after Power Off)The Resistance is variable according tothe input voltage.

CN73 and CN74 combined and use sameconnector(13P)CN70 -"11" (Red) CN73 -"9" (Blue)** 0: Short trouble /: Open trouble



95

TROUBLESHOOTING

4-2-14. If Inverter PCB Power is not supplied

- See the operations and

reference in this manual

when check the MAIN PCB.

Start

Replace FUSE & check the root cause

Is the fuse on AC110V/220V down?

Yes

No

Check the wire connection

Is 110V/220Vapplied between both end of PCB

inverter CN101 "1” andCN102 "3”?

No

Yes

Replace FUSE - 250V 6.3A

Is the fuse on MAINPCB down?

Yes

No

Check PCB PATTERN & Replace BD1

Is DC 300Vapplied between both ends of

BD1+,-?

No

Yes

Replace PCB ASSY

Is DC300Vapplied to HYBRID

IC #10 PIN?

No

Yes

1) Replace HYBRID IC(IC3:BP5047B15)2) Replace PCB ASSY

Is DC15Vapplied to HYBRID

IC #1 PIN?

No

Yes

Replace REG1 (KA78L05)

Is 5V applied to C106?No

Yes

Normal

Replace PCB ASSY

Is there anyPCB soldering short or

breakage?

No

Yes

At the INVERTER PCB Power, AC110V/220V power and over DC 300Vof high-voltage are applied. Please takecare of yourself when repair andmeasure.



96

TROUBLESHOOTING

4-2-15. LED blinking frequency depending on protecting functions

If Failure Condition is detected during compressor is operating, immediately stop Compressor operating and stand

by 5 minutes. During this 5 minutes, RPM command signal is not available. It means, even if available RPMcommand signal is applied to the compressor, it does not work and keep standing by.

Blinking time is 1 second and dwell time is 2 seconds.

LED blinking frequency depending on protecting functions

LED Blinking Frequency Protecting Functions

Normal Operation

Starting Failure

SPM Fault

Abnormal Current

Detection

Motor Locked /

Over RPM

Under Voltage

Over Voltage

Remarks

N/A

1. Short between COMP U,V, and W phase(CN301)

2. Short among IPM Pins(No, #1~33)

3. Drop the IPM operating Voltage under DC 13.5V

4. Other cases, cjeck the COMP, cycle, etc.

1. Operating the locked rotor COMP with in 5 second.2. Operating the COMP under 1000RPM more than

5secod.

3. Short the shunt resistor between leads.

4. Occur the huge change of input voltage in a moment

5. Other cases, check the COMP, cycle,etc.

1. Open the COMP wire(CN301)

2. Bad condition of R 308(ex. Bad soldering)

3. Other cases, cjeck the COMP, cycle, etc.

1. Drop the input voltage under AC 53V

2. Short resistor R513(DC link resistor)

1. Increase the input voltage over AC 154V

2. Short resistor among R501, R505 and R509

(DC link resistor)



97

TROUBLESHOOTING

SPM Internal DIODE Voltage



98

TROUBLESHOOTING

INVERTER CONTROLLER BOARD Connector Location

1. Inrush Current protecting area : It prevents an instant inrush of current generated in condenser when plug in.

2. PCB Power Source : Power source (HYBRID IC). It supplied DC15V and 5V to MICOM.

3. Location sensing resistance area : It senses motor location through the current detected.

4. Current sensing area : It senses the current from the SHUNT resistance and controls PWM DUTY.

5. COMP operating SIGNAL area : It receives COMP operating signal from MAIN PCB and conduct it.

6. BOOTSTRAP live part : Charging circuit that 1GBT of SPM can On/Off securely.



99

TROUBLESHOOTING

INVERTER PCB Circuit Diagram



4-3-2. Power Source (HYBRID IC)

1) The power supplied by Noise-Filter is rectified through COMP OLP and the voltage of 300V/DC, rectified

through DIODE, is applied in parallel to the SPM and SMPS area, a compressor operating driver.

2) The power source is the circuit which reduces 300V/DC to each 12V/DC and 15V/DC by Hybrid IC, and

supplied to operate the MICOM for controlling COMP, and SPM.

100

TROUBLESHOOTING

4-3-1. INRUSH CURRENT Protecting Circuit

1) The Power Thermistor prevents an instant inrush of current generated in condenser(C1) when plug in, and

Relay(K1) operates 0.1 second after plug in and the power is supplied by relay afterward.

2) The Fuse 1 is designed as 5A to prevent over current applied to Compressor, and Fuse 2 is designed as 1A toprotect SMPS area and power in secondary part.



4-3-4. Sensing Current Area

1) It is the circuit which senses the current from the SHUNT resistance and controls PWM DUTY and the

converted value as voltage (about 0.5V) is applied to the MICOM PIN #18.

101

TROUBLESHOOTING

4-3-3. Location Sensing Resistance Area

1) The circuit makes an AD conversion from MICOM for about 3.3V that divides the Motor Back EMF voltage

(DC300V) by 3 of 300K resistance and 10K resistance.



4-3-6. BOOTSTRAP Charging Area

1) It is the charging circuit that 1GBT of SPM can On/Off securely.

This circuit stores the power voltage to operate High-Side Power Switch of SPM and is constituted as 3

Capacitors and charges the capacitors by turning the Low-Side Power Switch "On" just before starting the motor

for a certain period of time (1000ms).

102

TROUBLESHOOTING

4-3-5. Comp Operating Signal Area

1) It is the circuit which receives COMP operating signal (200HZ ~ 400HZ) from Main PCB and controls the RPM

of the Inverter Comp.



103

5 . EXPLODED VIEW&PARTS LIST

5-1) Freezer 106

5-2) Refrigerator 108

5-3) Cabinet 111

5-4) Disassembly of Door Refrigerator L 114

5-5) Disassembly of Door Refrigerator R115

5-6) Disassembly of Door freezert198

5-7) Disassembly of Flex Zone Door120



104

EXPLODED VIEW&PARTS LIST

5-1) Freezer

1

12

4

7

7-2

7-1

8

6

4-1

4-34-2

3

9

5

11

10

2

1-1

1-2

1-3

12-3

12-2

12-612-5

12-1

12-4



105

EXPLODED VIEW& PARTS LIST

1

1

11

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

1

1

1

2

1

DA96-00631A

DA32-10104N

DA47-00318ADA47-00301B

DA97-08439A

DA63-05400A

DA97-08803A

DA34-00047B

DA61-03154A

DA66-00751A

DA66-00437B

DA67-00859C

DA97-08804A

DA61-03154A

DA66-00750A

DA63-05409A

DA34-10120E

DA61-05850A

DA97-08401A

DA97-08434A

DA31-00123A

DA31-00146H

DA47-00261E

DA61-03617A

DA61-20128A

DA96-00042S

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SC

SC

SA

SA

SA

SA

ASSY EVAP FRE

SENSOR TEMP

HEATER-METAL SHEATHTHERMO FUSE-ASSY

ASSY TRAY-FRE UPP

COVER-RAIL LOW L

ASSY RAIL-SLIDE LOW L

SWITCH PRESSURE

FIXER-GEAR

GEAR-RAIL L

SHAFT-GEAR

CAP-DOOR HANDLE

ASSY RAIL-SLIDE LOW R

FIXER-GEAR

GEAR-RAIL R

COVER-RAIL LOW R

SWITCH DOOR-F

GUIDE-DRAWER BOX

ASSY TRAY-DRAWER BOX

ASSY COVER EVAP-FRE

FAN-BACKWARD

MOTOR BLDC

HEATER CORD-DUCT FRE

CASE-MOTOR FRE ICE

SPRING ETC-FAN

ASSY-HARNESS MOTOR

AW3 PJT,PIN,120V/180W

PX-41C,AW3,-40~110#,5V,R-DEF

AW3(F),230W,120VHERMES,120V/250V,15A/10

AW3

AW3,ABS,COOL WHITE(SC-0

AW3,STS430,INTERNA

AW-PJT,ABS,COOL WHITE

AW-PJT,POM,-,NTR,-

AW-PJT,POM,NTR

AW2,SM25C,715.1,-,-,-,BLACK E

CORE,ABS,-,-,-,INOX,SC-0

AW3,STS430,INTERNA

AW-PJT,POM,-,NTR,-

AW-PJT,POM,NTR


-,slide,-,-,250V,-,0.5A,-,

AW3-PJT,PP,COOL WHITE(S

AW3

AW3

-,USP 05,ABS(HP-0760),-,2.0

-,2950,-,DC12V,150mA,-,-,2.1W

AW-PJT,P-CORD,7W,12

AW-PJT,PP(BJ-730),-,-

-,STS304,PI7.8,-,OD1.0,-,

AW3-PJT,F-FAN,ICE-FAN

Parts List of Freezer

1

1-1

1-21-3

2

3

4

4-1

4-2

4-3

5

6

7

7-1

7-2

8

9

10

11

12

12-1

12-2

12-3

12-4

12-5

12-6



107


1

1

11

2

2

2

1

1

1

1

1

1

1

1

1

1

1

2

2

1

1

2

1

1

1

1

1

1

11

1

2

2

2

1

1

1

1

1

1

1

1

1

1

1

1

1

2

DA61-05897A

DA61-05898A

DA97-08405ADA97-08459A

DA97-08461A

DA97-08480A

DA97-08538A

DA97-08463A

DA97-08609A

DA63-05477A

DA97-08430A

DA31-00101C

DA97-08433A

DA31-00146H

DA32-00033D

DA41-00676C

DA61-20128A

DA63-05404A

DA63-05410A

DA41-00519Q

DA61-04285A

DA63-05397A

DA63-05431A

DA66-00733A

DA96-00660A

DA32-10104N

DA61-03683A

DA47-00244W

DA47-00301D

DA97-04839ADA97-04840A

DA97-08402A

DA64-03209A

DA66-00718A

DA66-10104A

DA61-05854A

DA96-00398H

DA97-08437A

DA97-08438A

DA97-08520A

DA29-00019A

DA41-00519S

DA61-05868A

DA61-05869ADA61-05870A

DA62-02491A

DA63-05406A

DA63-05407A

DA63-05408A

SA

SA

SASA

SNA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

SNA

SA

SA

SA

SASA

SA

SA

SA

SA

ANGLE-SHELF REF SIDE R

ANGLE-SHELF REF SIDE L

ASSY CAP-ANGLEASSY ANGLE-SHELF REF MID

ASSY SHELF-SLIDE REF

ASSY-HANGER SHELF SLIDE

ASSY SHELF-SLIDE WELD

ASSY SHELF-QUICK SPACE

ASSY SHELF-INSERT REF FOLD

COVER MOTOR-DAMPER

ASSY INS-DAMPER CONV

MOTOR DC-DAMPER

ASSY COVER EVAP-REF

MOTOR BLDC

SENSOR TEMP

PBA-LED LAMP

SPRING ETC-FAN

COVER EVAP-REF SUB

COVER-LED

PBA-LED LAMP

GUIDE-FRENCH

COVER LAMP-REF

COVER-LED SIDE

SHAFT-GEAR CONV

ASSY EVAP REF

SENSOR TEMP

FIXER-SENSER

HEATER-METAL SHEATH

THERMO FUSE-ASSY

ASSY RAIL-VEG LASSY RAIL-VEG R

ASSY COVER-VEG REF

KNOB-HUMIDITY

LEVER-HUMIDITY

ROLLER-FRE

CASE LAMP-REF

ASSY-LAMP LED

ASSY CASE-VEG R

ASSY CASE-VEG L

ASSY CASE-WATER FILTER

FILTER WATER

PBA-LED LAMP

CASE-FILTER TANK R

CASE-FILTER TANK LSUPPORT-CASE FILTER

INSULATION-WATER FILTER

COVER-FILTER TANK

TRAY-WATER FILTER

COVER-LED FILTER

AW3,CR,T2.5,COOL

AW3,CR,T2.5,COOL

AW3,ABS,COOL WHITE(SC-915AW3

AW3,WELDING SHELF

AW3,COOL WHITE,P

AW3,Welding shelf

AW3

AW3

AW3,HIPS,COOL WHITE(S

AW3

NSBY001TJ1,12V,Max 60mA,

AW3

-,2950,-,DC12V,150mA,-,-,2.1W

PX-41C,-40~110#,5V,KET HOUSI

AW3,BLUE LED,FR-4,40*10,2CH

-,STS304,PI7.8,-,OD1.0,-,

AW3,ABS,COOL WHITE(SC

AW3,PP,NTR

AW3,FR-4,170*10,3EA,DC 12V,

AW2-PJT,PC-ABS,-,-,-,COOL-W

AW3,SAN,NTR

AW3,SAN,NTR

AW3,SM25C,743,BLACK

AW2 ND,PIN,120V/120W

PX-41C,AW3,-40~110#,5V,R-DEF

AW-PJT,PP,-,NTR,FH-44N

AW3(R),120W,120V

ARAM,120V/250V,15A/10A,

AW-PJT,-,-,-,-,-AW-PJT,-,-,-,-,-

AW3

AW3-PJT,ABS,NTR,Chromium P

AW3,HIPS,COOL WHITE(SC-03

POM,-,-,D22,-,-,


AW3,18EA

AW3,New Filter

AW3,New Filter

AW3,WHITE,ASSY

SSEDA

AW3,FR-4,65*10,3CHIP 2EA *

AW3,HIPS,DA WHITE(W92

AW3,HIPS,DA WHITE(W92AW3,SILICON,WHITE

AW3,FOAM PS,NTR

AW3,ABS,COOL WHITE(SC-

AW3,HIPS,DA WHITE(W921

AW3,SAN,NTR

Parts List of Refrigerator

1

2

34

5

5-1

5-2

6

7

8

9

9-1

10

10-1

10-2

10-3

10-4

10-5

10-6

11

12

13

14

15

16

16-1

16-2

16-3

16-4

1718

19

19-1

19-2

19-3

19-4

19-5

20

21

22

22-1

22-2

22-3

22-422-5

22-6

22-7

22-8

22-9



108


1

1

12

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

11

1

1

1

DA67-02505A

DA97-08005B

DA97-08006BDA63-05928A

DA97-08528A

DA61-05860A

DA63-05401A

DA97-08517A

DA97-08808A

DA61-03154A

DA63-05451A

DA66-00751A

DA97-08809A

DA61-02738A

DA61-03154A

DA66-00750A

DA34-00043H

DA63-02902B

DA63-03691A

DA97-05246G

DA32-10105B

DA61-20140A

DA61-60001A

DA63-90008A

DA66-90003A

DA71-00163A

DA74-40151G

DA96-00036W

DA97-07365A

DA61-05023ADA97-10609A

DA97-08428A

DA61-05854A

DA96-00398H

SA

SA

SASA

SNA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SASA

SNA

SA

SA

CAP-FILTER TANK

ASSY TANK WATER

ASSY CASE-FILTERCOVER-SEAL LED

ASSY CASE-CONV

CASE-CONVERTIBLE

COVER-CONVERTIBLE

ASSY-DIVIDER SMART

ASSY RAIL-SLIDE CONV L

FIXER-GEAR

COVER-RAIL CONV L

GEAR-L

ASSY RAIL-SLIDE CONV R

MAGNET-ASS'Y

FIXER-GEAR

GEAR-R

SWITCH REED-ASSY

COVER-FIXER HOUSING V

COVER-HARNESS ICE ROOM

ASSY CASE-AUGER MOTOR

SENSOR TEMP

SPRING ETC-SOLENOID

SLIDER-SOLENOID DISP

BUSH-SOLENOID

GEAR-SOLENOID

FIXER-NUT

VALVE-SOLENOID

ASSY W/HARNESS-SUB EM

ASSY ICE MAKER

GUIDE-ICE FULLASSY TRAY-ICE BUCKET

ASSY CASE LAMP-REF

CASE LAMP-REF

ASSY-LAMP LED

AW3,SAN,NTR

SSEDA,ASSY,NTR

AW3,WHITEAW3,PET,T0.5,TRANSPARENT

AW3


AW3,ABS,COOL WHITE(SCAW3

AW3,STS430,INTERN

AW-PJT,POM,-,NTR,-

AW3 PJT,ABS,COOL WHITE

AW-PJT,POM,-,-,-,NTR,-,-,-

AW-PJT,POM,NTR

CORE-PJT,Strontium ferrite,

AW-PJT,POM,-,NTR,-

AW-PJT,POM,-,-,-,NTR,-,-,-

AW-PJT,POM,NTR

NEXT-PJT,GALVA,T0.

AW-PJT,HIPS,COOLAW2,115V/

60Hz

-,-,-,-,-,-,TEMP CAP TYPE,-,

SR-S7180,STS304,PI7.

-,POM,-,-,-,-,-

-,POM,-,-,-,SC-93438R,-

POM,-,-,-,-,SC-93438R

ZIPEL,STS420,T1,-,CLIP,STS420-

SR-S6586B,-,-,-,-,CUBE-SN

AW09-PJT,100~240V

AW-PJT,115V,60Hz,-,-,-

AW-PJT,PC-ABS,COOL-WHITE

AW-PJT,90,490,WHT,BAW3,LED 18EA

AW3,ABS,COOL WHITE

AW3,18EA

Parts List of Refrigerator

22-10

22-11

22-1222-13

2323-1

23-2

23-3

24

24-1

24-2

24-3

25

25-1

25-2

25-325-4

26

27

28

28-1

28-2

28-3

28-4

28-5

28-628-7

28-8

29

29-130

31

31-1

31-2



110



1

1

11

1

1

1

1

2

2

2

2

1

1

1

1

1

1

1

1

4

1

1

1

2

1

1

1

2

21

1

1

1

1

1

2

2

1

1

1

1

1

1

1

1

1

1

1

2

2

2

DA96-00639A

DA32-00033C

DA63-05470ADA96-00562A

DA97-08608A

DA32-00033C

DA63-05470A

DA97-06487R

DA61-01920A

DA61-04702A

DA61-04977A

DA97-07147A

DA27-00022A

DA31-00010D

DA31-00015C

DA61-20128A

DA34-00004D

DA41-00614B

DA62-02614A

DA63-01866A

DA63-02617A

DA63-40171B

DA63-40171D

DA73-10190U

DA97-04049E

DA97-07070A

DA39-00415A

DA97-07547A

DA61-04703A

DA66-00649ADA97-08441A

DA97-08442A

DA97-08458A

DA97-08460A

DA62-02507A

DA63-05084A

DA63-40128A

DA63-40171B

DA97-08462A

DA31-00146B

DA97-08464A

MKV190CL2B/E01

DA41-00684A

DA39-20389LDA39-00154J

DA63-02905A

DA63-04975A

DA63-04975B

DA63-04975C

DA63-02905A

DA67-02304A

DA67-02304B

SNA

SA

SASA

SNA

SA

SA

SNA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SNA

SA

SASA

SA

SA

SNA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

ASSY W/HARNESS-MAIN

SENSOR TEMP

COVER SENSOR-FREASSY W/HARNESS-COND

ASSY COVER-SENSOR FRE

SENSOR TEMP

COVER SENSOR-FRE

ASSY CABINET-BOTTOM FRONT

CASTER-RIVET

CASTER-FRONT

FOOT-FRONT

ASSY SUPPORT-FOOT FRONT

COIL FILTER-EMI

FAN-ASS'Y

FAN-TURBO

SPRING ETC-FAN

RELAY PROTECTOR O/L

PBA SUB-INVERTER

DRYER-SINGLE

COVER RELAY

GROMMET COMP

GROMMET-SUCT PIPE A

GROMMET-SUCT PIPE B

PIPE-CONNECT DISC,B

ASSY CAP-DRAIN

ASSY MOTOR-STEP VALVE

WIRE HARNESS-STEP VALVE

ASSY CHASSIS-COMP

CASTER-REAR

SHAFT-CASTERASSY COVER-COMP

ASSY COVER PCB PANEL

ASSY PIPE CONNECT

ASSY TRAY-DRAIN WATER

SEAL-SUB CONDENSER

TRAY-DRAIN WATER

GROMMET-SUB COND

GROMMET-SUCT PIPE A

ASSY SUPPORT-CIRCUIT MOTOR

MOTOR BLDC

ASSY PIPE SPIRAL COND

COMPRESSOR

PBA MAIN

WIRE HARNESS-EARTHWIRE HARNESS-COMP

GROMMET HINGE-MID,R

COVER-LEG FRONT

COVER-LEG FRONT

COVER-LEG FRONT

GROMMET HINGE-MID R

CAP-TOP TABLE

CAP-TOP TABLE

AW3-PJT

PX-41C,-40~110#,5V,JST HOUSI

AW3,HIPS,COOL WHITE(SCAW09-PJT,100~127V

AW3

PX-41C,-40~110#,5V,JST HOUSI

AW3,HIPS,COOL WHITE(SCAW2-

ND,THAI-SI

(ZPC2),MSWR10,OD8.0,L54,-,-

AW-PJT,PP,-,35,NTR,35,PP+TP

AW2-PJT,PP+MSWR10,-,BLACK,-,-

AW2-PJT,-,-,-,-,

AW3-PJT,20mH,40m,42?,82

-,ET,ZIPEL,ASSY,-,UNIT,#150

-,ET-PJT,ABS+GLASS FIBE,-,GR-4

-,STS304,PI7.8,-,OD1.0,-,

4TM445PHBYY-82,BK190

AW3-PJT,TOP,FR-4,1.6T*1

HAEMIL_10,C1220T,OD18.85,L1

NORYL,T2.0,SSEC,BLACK,HOOK

USP05,EPDM,OD18.5,BLACK

-,NBR,OD20,ID4,L20,-

RAIL L19.5,NR,-,OD20

TD-PJT,C1220-T,-,6.3

AW3

CULLINAN,MOLD BRAC

GUGGENHEIM,PVC-T

AW2-CD,-,-,-,-,-,PP+TP

AW-PJT,PP,-,35,NTR,35,PP+TPE

AW-PJT,MSWR10,L46,OD8.2,-,-AW3

AW3

AW3,4 DOOR

AW3,4 DOOR

AW3,FOAM-PE,BLACK,T3

AW2-PJT,PP,NTR

-,NBR,-,-,-,-,-,-,DARK-

-,NBR,OD20,ID4,L20,-

AW3,4 DOOR

DRCP5030LA,1560,-,DC12V,230mA

AW3

115V~60HZ,BLDC,FAN,MKV

AW3-PJT,ASSY CYCLE,FR-1,210*197

TMF/LMF,-,-,-,-,-,AWGAW3-PJT,UL1015AWG18,35

NEXT,POM,T2.0,-,-,-,

AW2 CD,Creamy STS

AW2 CD, I-Black

AW2 CD, Snow White

NEXT,POM,T2.0,-,-,-,-,WHITE,-

AW2 CD, CREAMY STS

AW2 CD, I BLACK

Parts List of Cabinet

1

1-1

1-21-3

1-4

1-4-1

1-4-2

2

2-1

2-2

2-3

2-4

3

4

4-1

4-2

5

6

7

8

9

10

11

12

13

14

14-1

15

15-1

15-216

17

18

19

19-1

19-2

19-3

19-4

19-5

19-5-1

19-6

20

21

2223

24

25

26

27



111


2

1

11

1

1

1

1

1

1

1

1

1

1

3

1

1

1

1

1

DA67-02304C

DA97-04875G

DA97-04875FDA97-04875H

DA97-07514D

DA97-07515A

DA97-07822F

DA97-07822G

DA97-07822H

DA97-08448A

DA97-08448B

DA97-08448C

DA62-01627B

DA61-02482A

DA61-06150A

DA97-05362C

DA97-07556A

DA97-07827E

DA97-08413A

3903-000519

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

CAP-TOP TABLE

ASSY HINGE UPP-R

ASSY HINGE UPP-RASSY HINGE UPP-R

ASSY HINGE MID-L

ASSY HINGE MID-R

ASSY HINGE-UPP L

ASSY HINGE-UPP L

ASSY HINGE-UPP L

ASSY TOP-TABLE

ASSY TOP-TABLE

ASSY TOP-TABLE

TUBE-FITTING-B

FIXER HOSE

FIXER HOSE

ASSY PIPE-WATER

ASSY COVER-PIPE WATER

ASSY VALVE WATER

ASSY COVER-TUBE FILTER

CBF-POWER CORD

AW2 CD, Snow White

AW2,Creamy STS

AW2, I-BlackAW2, Snow White

AW2-ND,T4.5,Ni-Cr Plate

AW2 CD-PJT,T4.5,-,-,Ni-

AW2,Creamy STS

AW2, I-Black

AW2, Snow White

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

POM,CAP FITTING ADD

NEXT700SD,PA

AW3,NY-66,NTR

AW-PJT(BEST),CD,TIM

AW2-C/D-PJT,-,-,-,

AW3,110-127V

AW3

AT,USA,MEXICO,SPT-3,HOUSI

Parts List of Cabinet

27

28

29

30

31

32

33

34

35

36

37

38

39

40



112


5-4) Disassembly of Door freezer

1-11

1-4

1-5

1-6

1-3

1-1

1-10

1-13

1-15

1

2

2-4

2-32-2

2-1

1-9

1-14

1-9

1-3

1-1

1-12

1-7 1-6

1-8

1-2

1-2

1-10



113

EXPLODED VIEW& PARTS LISTEXPLODED VIEW& PARTS LIST

1

2

22

2

2

1

1

1

1

1

1

2

1

1

1

1

1

1

2

2

1

1

1

1

1

1

1

1

11

1

1

1

1

1

1

DA91-03036A

DA61-05899A

DA61-05930ADA61-06014A

DA61-06014B

DA61-06014C

DA63-05432A

DA63-05432B

DA63-05432C

DA63-05433A

DA63-05433B

DA63-05433C

DA66-00579B

DA67-02512A

DA67-02512B

DA67-02512C

DA67-02513A

DA67-02513B

DA67-02513C

DA61-02904B

DA61-04335B

DA91-03007A

DA91-03007B

DA91-03007C

DA91-03007D

DA64-02550A

DA64-03246A

DA64-03246B

DA61-03153B

DA61-03155BDA97-05557Q

DA97-05557P

DA97-08407A

DA61-05846A

DA61-05847A

DA63-03459A

DA63-05386A

SNA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SASA

SA

SNA

SA

SA

SA

SA

ASSY DOOR-FRE

FIXER-SHAFT R

FIXER-SHAFT LSLIDER-EASY HANDLE

SLIDER-EASY HANDLE

SLIDER-EASY HANDLE

COVER-HANDLE L

COVER-HANDLE L

COVER-HANDLE L

COVER-HANDLE R

COVER-HANDLE R

COVER-HANDLE R

SHAFT-CAP HANDLE

CAP-HANDLE CONV L

CAP-HANDLE CONV L

CAP-HANDLE CONV L

CAP-HANDLE CONV R

CAP-HANDLE CONV R

CAP-HANDLE CONV R

SUPPORT-DOOR POSITION,IN

SPRING ETC-EASY HANDLE

ASSY DOOR FOAM FRE

ASSY DOOR FOAM FRE

ASSY DOOR FOAM FRE

ASSY DOOR FOAM FRE

HANDLE BAR-FRE

HANDLE BAR-FRE

HANDLE BAR-FRE

HANGER-RAIL FRONT L

HANGER-RAIL FRONT RASSY-GASKET DOOR FRE

ASSY-GASKET DOOR FRE

ASSY GUARD-FRE

SUPPORT-GUARD FRE R

SUPPORT-GUARD FRE L

GUARD-FRE FLIP

GUARD-FRE

AW3

AW3,POM,NTR

AW3,POM,BLACK(SC-00477R)AW3,RS,PN

AW3,BP

AW3,WP

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW3,MSWR10,92,5,ZPC3(Y)

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW-PJT,HIPS,-,-

08 AW1,2-PJT,HSWR

AW3,RS

AW3,BP

AW3,WP

AW3,PN

AW2-PJT,STS304,-,-,730,-,

AW2-PJT,BLACK

AW2-PJT,WHITE

AW-PJT,SECC1,T2.0,CO

AW-PJT,SECC1,T2.0,COAW3_FRE,GRAY

AW3_FRE,BLACK

AW3

AW3,HIPS,COOL WHITE(

AW3,HIPS,COOL WHITE(

AW-PJT,HIPS(HR-1360),-,-,

AW3,HIPS,COOL WHITE(SC-02740R)

Parts List of Refrigerator Door-freezer

1

1-1

1-2

1-3

1-4

1-5

1-6

1-7

1-8

1-9

1-10

1-11

1-12

1-13

1-14

1-15

2

2-1

2-2

2-3

2-4



114


5-5) Disassembly of Door Refrigerator L

9

6

7

11

8

11-1

10-7

10-4

10-210-1

4

10-6

10-5

5

7-1-7

7-1 7-1-4

9-2

9-1

1

2

3

7-1-37-1-2

7-1-6

7-1-5

7-1-1

8-1

8-2

4

10-3

12

10



115


1

1

12

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

11

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

DA97-08409A

DA97-08400A

DA97-08408ADA61-03734A

DA63-05506A

DA63-05506B

DA63-05506C

DA97-05253R

DA97-05253Q

DA91-03040A

DA91-03040B

DA91-03040C

DA91-03040D

DA97-08516A

DA41-00519R

DA61-02383E

DA61-02383A

DA61-02383C

DA61-03211A

DA61-03769A

DA63-05524A

DA63-40294A

DA66-00442B

DA66-00442A

DA66-00442C

DA97-05353A

DA63-03698A

DA67-01729A

DA97-08512A

DA97-08512BDA97-08512C

DA81-01345B

DA81-01346A

DA97-08518A

DA97-08679A

DA97-08679B

DA97-08679C

3201-001611

DA61-06020A

DA63-05448A

DA63-05450A

DA63-05507A

DA96-00669A

DA97-08519ADA97-08680A

DA97-05368A

DA64-03248A

DA97-08672A

DA97-08672B

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SNA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SASA

SA

SA

SA

SA

ASSY GUARD-DISP

ASSY GUARD REF-L

ASSY GUARD REF-MIDFIXER-HANDLE

TRAY-DISPENSER

TRAY-DISPENSER

TRAY-DISPENSER

ASSY-GASKET DOOR REF


ASSY DOOR FOAM REF-L




ASSY-PLATE DOOR REF L

PBA-LED LAMP

SUPPORT-DOOR CLOSE

SUPPORT-DOOR CLOSE

SUPPORT-DOOR CLOSE

STOPPER-DOOR L

MAGNET

COVER-CAP DOOR LED

GROMMET-STOPPER

CAM-AUTO CLOSE L

CAM-AUTO CLOSE L

CAM-AUTO CLOSE L

ASSY CAP-CHUTE ICE

GASKET-CAP CHUTE ICE

CAP-CHUTE ICE

ASSY-FRENCH

ASSY-FRENCHASSY-FRENCH

SPRING-ETC FRENCH

PIN-FRENCH SPRING

ASSY COVER DISP

ASSY COVER DISP

ASSY COVER DISP

ASSY COVER DISP

SENSOR

GUIDE-LAMP DISPENSER

COVER-SENSOR DISPENSER

COVER-TOUCH SWITCH

COVER PCB-PANEL REAR

ASSY W/HARNESS-DISTANCE SENSOR

ASSY LEVER-DISPENSERASSY CASE-ICE ROUTE

ASSY COVER-ICE ROUTE

HANDLE-BAR REF

ASSY HANDLE-BAR REF

ASSY HANDLE-BAR REF

AW3

AW3

AW3AW-PJT,SWRCH18A,M8,-,GE

AW3, Creamy STS

AW3, I-Black

AW3, Snow White

AW3,GRAY

AW3,BLACK

AW3,RS

AW3,BP

AW3,WP

AW3,PN

AW3,STS304,REAL-ST

AW3,FR-4,65*10,3CHIP 3EA,DC

AW, Creamy STS

AW, I-Black

AW, Snow White

AW-PJT,SHP1,T2.9,-,-,-,-

HERMES,-,5x7x18,-,-,1200Gauss

AW3,SAN,NTR

T3XW8XL8,NR,-,-,-,-,-,-,

AW, Creamy STS

AW, I-Black

AW, Snow White

AW-PJT(BEST),-,-,-,-,

AW-PJT(BEST),SILICO

AW-PJT,ABS(HG-0760H),-,-,-

AW3,THAI-SILVER

AW3,BLACKAW3,WHITE

STS304,PI1.4,3.5,-,-,-,-

RD-PVC,WHITE,-,-,-,-,-

AW3,RS

AW3,BP

AW3,WP

AW3,PN

GP2Y0A21YK,-10to+60C,5V,DISTANCE

AW3,AL,VERSAILLES-S

AW3,PC,NTR

AW3,ABS,COOL WHITE(SC

AW3,HIPS,NTR

AW3-PJT

AW3,STS COVERINGAW3

AW-PJT,-,-,-,-,-,-,

AW3,STAINLESS-STS304

AW3,BLACK

AW3,WHITE

Parts List of Door Refrigerator -L

1

2

34

5

6

7

7-1

7-1-1

7-1-2

7-1-3

7-1-4

7-1-5

7-1-6

7-1-7

8

8-1

8-2

9

9-1

9-2

10

10-1

10-2

10-3

10-4

10-5

10-6

10-711

11-1

12



116


5-6) Disassembly of Door Refrigerator R

5

1

3

2

6 4

5

5



117


DA61-03734A

DA91-03039A

DA91-03039BDA91-03039C

DA91-03039D

DA64-03248A

DA97-08672A

DA97-08672B

DA97-05253R

DA97-05253Q

DA97-08406A

DA64-01985A

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

FIXER-HANDLE

ASSY DOOR FOAM REF-R

ASSY DOOR FOAM REF-RASSY DOOR FOAM REF-R

ASSY DOOR FOAM REF-R

HANDLE-BAR REF

ASSY HANDLE-BAR REF

ASSY HANDLE-BAR REF



ASSY GUARD REF-R

MASCOT

AW-PJT,SWRCH18A,M8,-,GE

AW3,RS

AW3,BPAW3,WP

AW3,PN

AW3,STAINLESS-STS304

AW3,BLACK

AW3,WHITE

AW3,GRAY

AW3,BLACK

AW3

SBS,AL,T1.5,L90,Fixing-type,Siver

Parts List of Door Refrigerator -R

1

2

3

4

5

6

2

1

11

1

1

1

1

1

1

3

1



118


5-7) Disassembly of Flex Zone Door

1

2

2-19

2-7

2-32-2 2-15 2-12

2-6

2-11

2-15

2-9 2-8

2-12

2-6

2-3 2-22-1

2-10

2-17

2-13

2-14

2-18

2-5

2-4

2-16




1

1

22

2

1

1

2

2

2

1

1

1

1

1

1

2

1

1

1

1

2

1

1

1

1

1

1

2

11

1

1

1

1

1

1

1

1

DA63-05462A

DA91-03035A

DA41-00519RDA61-05899A

DA61-05930A

DA61-05937A

DA61-05938A

DA61-06014A

DA61-06014B

DA61-06014C

DA63-05432A

DA63-05432B

DA63-05432C

DA63-05433A

DA63-05433B

DA63-05433C

DA63-05524A

DA63-05630A

DA64-03273A

DA64-03273B

DA64-03273C

DA66-00579A

DA67-02512A

DA67-02512B

DA67-02512C

DA67-02513A

DA67-02513A

DA67-02513A

DA61-04335B

DA91-03008ADA91-03008B

DA91-03008C

DA91-03008D

DA97-10605A

DA64-02550A

DA64-03246A

DA64-03246B

DA97-05557S

DA97-05557R

SA

SNA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SA

SASA

SA

SA

SA

SA

SA

SA

SA

SA

COVER-W/HARNESS CONV DOOR

ASSY DOOR-CONV

PBA-LED LAMPFIXER-SHAFT R

FIXER-SHAFT L

HANGER-RAIL FRONT CONV L

HANGER-RAIL FRONT CONV R

SLIDER-EASY HANDLE

SLIDER-EASY HANDLE

SLIDER-EASY HANDLE

COVER-HANDLE L

COVER-HANDLE L

COVER-HANDLE L

COVER-HANDLE R

COVER-HANDLE R

COVER-HANDLE R

COVER-CAP DOOR LED

COVER-CONTROL WINDOW CONV

INLAY-COVER CONTROL CONV



SHAFT-CAP HANDLE

CAP-HANDLE CONV L

CAP-HANDLE CONV L

CAP-HANDLE CONV L

CAP-HANDLE CONV R

CAP-HANDLE CONV R

CAP-HANDLE CONV R

SPRING ETC-EASY HANDLE

ASSY DOOR-FOAM CONVASSY DOOR-FOAM CONV

ASSY DOOR-FOAM CONV

ASSY DOOR-FOAM CONV

ASSY COVER CONTROL-DISPLAY CONVHANDLE BAR-FRE

HANDLE BAR-FRE

HANDLE BAR-FRE



AW3,PP,COOL WH

AW3

AW3,FR-4,65*10,3CHIP 3EA,DCAW3,POM,NTR

AW3,POM,BLACK(SC-00477R)

AW3,EGI-SECC,T2

AW3,EGI-SECC,T2

AW3,RS,PN

AW3,BP

AW3,WP

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW3,SAN,NTR

AW3,ACRYL,T2.0

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW-PJT,MSWR10,108,5,-,-

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

AW3,Creamy STS

AW3, I-Black

AW3, Snow White

08 AW1,2-PJT,HSWR

AW3,RSAW3,BP

AW3,WP

AW3,PN

AW3,NTR

AW2-PJT,STS304,-,-,730,-,

AW2-PJT,BLACK

AW2-PJT,WHITE

AW3_CONV,GRAY

AW3_CONV,BLACK

Parts List of Flex Zone Door

1

2

2-12-2

2-3

2-4

2-5

2-6

2-7

2-8

2-9

2-10

2-11

2-12

2-13

2-14

2-15

2-16

2-17

2-18

2-19

119



121

6-1) PCB Layout with part position

PCB DIAGRAM

1. DC12V, 5V, GND supplied from SMPS PCB

2. Circuit for controlling Step-Valve (3-Way Valve) * Option

3. FAN MOTOR control part : To supply the power from 8.3V ~ 12V according to the motor types. (F,R,C,ICE)

4. EEPROM : Save and record every kinds of data.

5. Transmit inputted signals from every sensor into MICOM after eliminate the noise.

6. Micom : control the regrigerator Ceramic resonator : generate the basic frequency of Micom operation.

Reset IC : make Micom reset if input voltage of Micom is detected less than the specified voltage

7. PLC input/output

- PLC (Power Line communication) * Option(PLC module is not inserted unless specified occasion)

8. Operate ICE-MAKER, supply power to MOTOR, and sense the variation of switch.

9. Main Micom Panel Micom serial communication circuit

- Dispenser option input part (Water & Cover Ice route switch)

10. Flex room display control part : display LED, detect KEY state.11. Control Flex room damper & Damper heater

12. Water Tank Heater Controls (also controls other options)

13. LED LAMP Control Circuit (F,R,Flex Lamp)

14. Relay parts that controls AC load and receives Micom operating signal through Sink IC.

15. Connector with AC load

a. Diode option setting area

b. Inverter COMP controlling signal

C. Flow Sensor controlling signal



122

6-2) PCB Layout with part position (Inverter Board)

PCB DIAGRAM

1. Inrush current protecting area : It prevents an instant inrush of current generated in

condenser when plug in.

2. PCB Power Bus : power bus (Hybrid IC). It supplies DC15V and 5V to MICOM.

3. Current detecting area : It detects the current from the SHUNT resistance and controls

PWM DUTY.

4. COMP operating Signal area : It receives COMP operating signal from Main PCB and

conduct it.

5. BOOTSTRAP live part : Charging circuit that 1GBT of SPM can On/Off securely.

6. IPM : The output circuit for operating COMP of the Refrigerator.



123

6-3) Connector Layout with part position (Main Board)

PCB DIAGRAM

6-3-1. RF4287HA**



124

6-4) Connector Layout with part position (Inverter Board)

PCB DIAGRAM

6-4-1. RF4287HA**



125

7-1) Model : RFG295AA**[BETTER]

7. WIRING DIAGRAM

BLU

BLU



126

7-2) Model : RF4287AA**[BEST]

7. WIRING DIAGRAM



127

7-3) Model : RFG299AA**[7" LCD]

7. WIRING DIAGRAM

BLU

BLU



130

8. SCHEMATIC DIAGRAM

8-1-2. INVERTER BLOCK(RF4287***)



131

8-2) CIRCUIT DIAGRAM

SCHEMATIC DIAGRAM

8-2-1. MAIN



132

SCHEMATIC DIAGRAM

8-2-2. INVERTER



272, Oseon-Dong, Gwangsan-Gu,Gwangju-City, Korea, 506-253TEL : 82-62-950-6193, 6896FAX : 82-62-950-6829

rf4287 series service manual

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