148900276 samsung dw manual

7/27/2019 148900276 Samsung DW Manual

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Samsung Dishwasher Training Support

Revised 11/10/08

Page 1 Index

Pages 2 8 Water Flow

Pages 9 10 Detergent/Rinse Aid Dispenser

Page 11 Heater Access

Page 12 Fuse and Relay access

Pages 13 - 16 Error Codes & Service Test Modes

Page 17 Thermistor Temperature / Voltage Chart

Pages 18 Cycle Time Chart

Pages 19 - 24 Flow Charts

Page 25 Main PCB Layout

Pages 26 - 27 Wiring Diagrams

Page 28 Bulletin


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Extra Large CapacityElegant Design with DigIncreased ConvenienceSuper Quiet OperationNo Filter Cleaning Requ

DISHWASHER

Service InformatDMR 77LHS, DMR 77LHB, DMR 77LHW DMR 57LF

DMR 57LFW


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ater supply cycle

A. Water supply function in the cycle starts 3 seconds after the drain function iB. When the there is no pulse input from the water supply valve after the wate

RROR("4E") will be displayed.C. The amount of water supplied is about 1.1 ~ 1.8 gallons. The amount of wa

ariances of flow meter, water pressure and inlet valve etc.D. When Over-flow level is detected, the ERROR "oE is displayed.E. When the water supply is not completed within 5 minutes, the ERROR ("4E

Water Supply Operation

Drain Cycle Operation

A. Drain cycle operates when the operation button is initially entered or 1 seco

ycle are completed.B. Drain function is executed as follows.

Remove remaining water

(Initially press operation button)

Check float S/W after 45 secon

turned on

Drain cycleCheck float S/W after 70 secon

turned on

nd function

A. When all of the cycles within the selected cycle is executed, this function is eB. During this function, the End sign is displayed with the MELODY generated.C. After the selected cycle is completed, the power automatically turned OFF.


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Operating principle and order of dish washer

Dishes

Dishes

Front

Inner Space

Water

HeaterHigh temperature water

Disposer

Grinds the leftover food to

make the particles

smaller in size

Operating Principle


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Water Flow Path

Adjustable


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Flow Meter

Flow meter must count the water flow forthis unit to operate. Water level switch isactivated by water from the inlet only.You cant just pour water into the unit totest it.

Normal water fill

Flow Meter


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Half Load Option DMR77 o

Distributor motor forHalf Load operation.

Test Mode P8Micro Switch formotor.Cam to activateswitchFault code PE

Selecting this option diverts water, with the distributor motothe upper spray arm only


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Dishwasher


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Detergent/Rinse Aid DispDetergent Door Not Opening

. Never overfill the dispenser compartment with powder or liqup to fill line.. If there is residue around the dispenser door area. Previousartially dispensed, or door stuck close issue) clean it with mildesidue can foul the mating latch.. If the customer uses accutabs or some self contained type ofis fully seated and the door does not sandwich it shut.. Make sure that in the rack nearest to the dispenser door wheot obstructing the opening of the dispenser with some protrud


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Detergent/Rinse Aid Disp

Testing1. Disconnect wires from disp. & close detergent door.2. Connect cheater cord and apply 120vac

3. In approximately 40 seconds the wax motor will open 4. Remove power, allow wax motor to return.5. Restore power to wax motor, in approximately 40 secwill be activated. Remove power.6. Close detergent door to repeat test


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DishwasherAccessing HeaterRemove mesh filter assyRemove shieldRemove heater

Removing the shield withoutremoving the filter assy couldresult in broken tabs


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1) Unscrew the s

Frame R.

2) When you sep

the Fuse & Re

3) Pull out Fuse

Base.

4) Open the FuseCheck the fuse

5) Separate the te

Unscrew the s

screwdriver.

Check List

If reassemble th

replacement, you m

Relay and fuse replacem


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Error

Type

Error

Mode

Cause Reason Tests Without Pulling

D/W

Test

Mode

Related

parts

Symptoms Act

WatersupplyError

4 E 1 When 80 or above isdetected during watersupply

Thermistor DefectWater supplytemperature of 80 oraboveMain PBA defect

Perform service test t3,run for 3 minutes andcompare the displaytemp with actual watertemp Celsius. It shouldbe within about 8degrees C. Difference

due to tank vs. sumptemperature.

t3 CirculationMotor,Heater,

Thermistor

HE error 1. Pkeyheapum2. Ifsenaga

con3. Ttemthe 4. It

DrainError

5E When OFF status ofLow Level S/W is notdetected within3minutes during thedrain

Drain pump defectLow Level SensordefectForeign particlesclogging mater drainhose

Drain valve terminalnot connectedMain PBA defect

Perform service test t6Check motor resistanceand voltage at white onCN1 to orange wires atCN14 42.2 ohms @120vac

t6 Low LevelSensor

Displayerror when

turningMicro S/W

on/off

1. MThedisp88 s2. M

The

disp88 s

HeaterError

HE When the temperaturechange is 4 or lesswithin thefirst 10 minutes afterthe heating starts

Heater defectHeater Relay defectHeater terminal notconnectedMain Wire-HarnessdefectMain PBA defect

Perform service test t3,will heat waterapproximately 1 degreeC per minuteIf not working, relaydriver voltage is onmain pcb red wire CN7to white wire on doorswitch on right, lookingat back of panel. Willread approximately 50ohms and 12vdc offand 0.5vdc on.


Thermistor

HE error 1. Pkeyheapum2. Ifsenagacon3. Ttemthe 4. It


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Error

type

Error

Mode


D/W

Test

Mode

Related

parts

Symptoms Act

HeaterError

HE1 When the temperatureof the Thermistor is80 or above formore than 3 seconds

Heater Relay defectThermistor defectMain PBA defect

Perform service test t3,will heat waterapproximately 1 degreeC per minuteIf not working, relaydriver voltage is onmain pcb red wire CN7

to white wire on doorswitch on right lookingat back of panel. Willread approximately 50ohms and 12vdc offand 0.5vdc on.


Thermistor

HE error 1. Pkeyheapum2. Ifsenaga

con3. Ttemthe 4. It

TempsensorError

tE1 When 0.2V or below,or 4.5V or above ismaintainedfor over 3 seconds

Thermistor terminalnot connected

Thermistor DefectMain PBA defect

Perform service test t3,run for 3 minutes andcompare the displaytemp with actual watertemp Celsius. It should

be within about 8degrees C. Differencedue to tank vs. sumptemperature


Thermistor

HE error 1. Pkeyheapum2. If

senagacon3. Ttemthe 4. It

DrainError

5E When OFF status ofLow Level S/W is notdetected within3minutes during thedrain

Drain pump defectLow Level SensordefectForeign particlesclogging mater drainhoseDrain valve terminalnot connectedMain PBA defect

Perform service test t6Check motor resistanceand voltage at white onCN1 to orange wires atCN14 42.2 ohms @120vac

t5 DrainPump,

Low LevelSensor

5E error 1. Pkey2. tthe bein3. Wfiniswith


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Error

type

Error

Mode


D/W

Test

Mode

Related

parts

Symptoms Act

Halfoaderror

PE When micro s/w is notdetected for over 30secondsafter the Distributormotor starts

Distributor motordefectMicro sw terminal notconnectedMain PBA defect

Perform service test t8Violet wire CN 14 to

Yellow wire at detergentdispenser 2.6 Kohms @ 120vac

t8 DistributorMotor,

Micro S/W

PE Error 1. IfStarope2. Tfunc3. Wmot

senas Oon tdisp4. Wmotstatmicswit

t2 CirculationMotor

Nozzle doesnot spray

1. ke

2.

suo

t4 Fan Motor Fan Motornot working

Preto smot

t7 Thermistor No changein watertemp

Theis d


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Thermistor Temperature / Volta

Temp. (F) Temp. (C) Resistance (k)

41 5 125.780

50 10 98.323

59 15 77.454

68 20 61.465

77 25 49.120

86 30 39.517

95 35 31.996

104 40 26.065

113 45 21.385

122 50 17.599

131 55 14.579

140 60 12.140

149 65 10.159

158 70 8.542


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MICOM cycle

Program chart [ time(min), temperature ]

ProgramDrain

Pre-

wash 1

Pre-

wash 2

Pre-

wash 3

Main

washRinse 1 Rinse 2

Normal 0:45 16:30 (16:30) - 32:30 7:30 (7:30)

Heavy 0:45 17:30 17:30 17:30 46:30 7:30 7:30

Delicate 0:45 16:30 - - 37:30 7:30 -

Rinse 0:45 - - - - 9:30 -

Quick 0:45 5:30 - - 11:30 7:30 -

Smart Auto 0:45 5:30~17:30

(17:30) (17:30) 11:30

~46:30

7:30 (7:30)

Program Pre-wash

1,2,3Main wash Rinse 1,2

Rin

No Sanitize

Normal - 120F (49C) - 140F (60C)

Heavy - 149F (65C) - 158F (70C)

Delicate - 113F (45C) - 140F (60C)

Rinse - - - -

Quick - 113 F (45C) - 140F (60C)

Smart Auto - 113~149F (45~65C) - 140~158F(60~70C)

Cycle Time Chart


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1. When the power does not come on

The power does not come on.

Sub PBA ASSY is defective.

Please replace it.

Is the voltage between orange(No. 6) and pink (No. 7) of CN7

connector of main PBA 4.5V or

above and the voltage between

orange (No. 6) and white (No. 9)

10.5V or above?

Y

N

No Power Troubleshoo


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Front Display incorrect or out

Is the condition of graphic LED normal?

Is the connector of graphic LED seated properly?

Y

N

Graphic LED is defective.

Please replace it.

Is the voltage on CN7 between

orange (No. 6) and pink (No. 7)

4.5~5.25V and the voltage betweenorange (No. 6) and white (No. 9) pin

10.5-13V?

N

Y

N

Y

Incorrect LED Displa


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Cant hear the buzzer sound and the

display part is not turned on.

Is the SUB PBA connector properly seated?

Is the power switch ON?

Y

N

SUB PBA ASSY is defective. Please

replace the Control Pane ASSY.

Is the voltage on CN7 between

orange (No. 6) and pink (No. 7)connector of main PBA 4.5V or above

and the voltage between orange (No.

6) and white (No. 9) 10.5V or above?

(

N

Y

N

Y

No Buzzer Troubleshooting


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The drain is not working. (5E)

Is the drain hose clear?

Is the Low Level Sensor working

normally? (Check service test mode

t8 and check the float operation.)

Y

Is the drain pump terminal normal?

Does the drain motor read about 25?

Main PBA ASSY is defective.

Please replace it.

Is the main relay working normally?

Refer to Main relay is not working.

C

Y

N

Y

N

Y

N

Y

N

Y

N

No Drain Troubleshoo


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Water supply is not working.(4E)

Water supply is correct and on

Is the water valve

connector seated properly?

Does the water supply valve coil

measure about 1.2K?

Flow meter is

rep

Is the water supply relay

working normally?

Is the main relay working normally?

Refer to Main relay does not work.

The water supply pressure is too low. Check household

water supply and shutoff valve to D/W.

Does the valve open

continuously?

Main relay is d

rep

PCB assemb

Please

Y

Y

N

YN

Y

N

Y

Does the water valve stay open

for 5 minutes straight?

N

N

N

No Water Fill Troublesho

Re-insert the water val


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Dry is not working

Is the fan

connection seated?

Is the dry fan

operating? (Utilize

service test mode t6)Y

N

Main PBA assembly is defective.

Please replace it.

Does the Fan

Motor coil read

about 150?

Firmly connect

the connector.

ASSY Fan Vent is

defective. Please

replace it.

N

Y

N

Y

Is the wire

connection firm

connected?

Is the Rinse A

dispenser operation

N

Is the Dispens

operating rela

operating?

N

Y

No Dry Operation TroublesDetergent/Rinse Agent dispenser is 2.3k ohms @ 12

using fused cheater cord to power the wax motor. V

wax motor until detergent cup opens, remove power,

right. When wax motor retracts power again until rins


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Main PCB Connector La


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Wiring Diagram (DMR


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Wiring Diagram (DMR


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This information is published for experienced repair technicians only and is not intended for use by the public. It does not containwarnings to advise non-technical individuals of possible dangers in attempting to service a product. Only experienced professional

SUBJECT: Customer complains the unit starts operating by itself.

SYMPTOM: The fron t panel buttons activate with very light pressure and are very sensiti ve.

SOLUTION: Order and install new ASSY Panel Control (DD97-00105A). The replacementboard has been reprogrammed to reduce the sensitivity of t he buttons.

Part Number Description

DD97-00105A ASSY PANEL CONTROL

Note: Consult the Samsung Service Website at (http://service.samsungportal.com) for the Service Manualand other information on this product.

SERVICE BULLETINPRODUCT: Dishwasher

BULLETIN NUMBER: ASC20081104001

BULLETIN DATE: 04 Nov 2008

MODELS: DMR57LFS

Chassis R-PJT

ELECTRONICS

148900276 samsung dw manual

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