22-172 sears ddw18 dishwasher

8/19/2019 22-172 Sears DDW18 Dishwasher

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DEPT.73 IA

TECHNICAL

FLASH

ServiceBranchManager

Assistant ServiceBranch

Manager

CallCentreManager

Quality

Education eader

T.F.

22-172

ocroBER 2004

CLAUDE BABINEAU

_

S/73IA

DIVISION 22

461

DANBY

DISHWASHER

DDW18o2

14352

DDW1805

17352

SERVICE ANUAL

CLAUDEBABINEAU-

DEPARTMENT31A

CHRIS

BURNELL-DEPARTMENT31A



INDEX

1.

PRODUGT

SPEGIFIGATIONS

2.

SCHEMATIC

DIAGRAM

3. WIRING

DIAGRAM

4.

TIMER

CYCLE

GHART

5. COMPONENT

OPERAilON

AND

REPAIR

6. TROUBLE

SHOOTING

7.

PARTS

LIST

AND

DIAGRAM



SPECIFICATION

MODEL

DDW1802

and DDW1805

ELECTRICAL

Ratinq

120V 0Hz

Motor

HP)

1 t5

Motor

Amos)

Heater

Wattaqe

1000w

Wash

TotalAmre

(Load

Rated)

9.24

Thermostat

Contacts

Close

at

127"F 5"F

58nt3l

WATER

SUPPLY

Suggested

Min. Incoming

Water

Temperature

120,r

to

150.r

49,

to 66.Pressure

PSl)

Minimum/Maxim

m

15/120 SI

Connection

NPT)

318"

Consumption

Toil

Gallons)

3.5r5%

WaterValve

Flow

Rate

GPM)

1.08GPMt10%



i ' l a -

v d

r

d

. o

r e

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=

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+ I

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TIMER

CYCLE

CHART

6

F

1

L

#

H

fE

e

o

g

U'

E

b

o

o

a

g

o

I

t

=

r()

o

@

rF:

E

?

=

N

o

@

E

rf

9 -

. r ( )

6 ;

o O i -

5 o I

2 f r a e

o r E b

t r

b e t r

^ <

g t b b

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g , p

t L

x

. - . -

- 6 = =

L J

f l E E

l J r r l

( L i i i

a

> d +



COMPOruEruT

PERATION

ND

REPAIR

SAFETYPRECATIONS

Always

turn

off the

electric

power

supply

before servicing

any

electrical

component,

making

ohmmeter hecks, r replacing ny

parts.

All voltage

checks

should

be

made

with a voltmeter

aving

a full scale

ange

of

130volts

or higher.

After

service s

completed,

e

sure all

safety-grounding

ircuits

re complete,

ll

electrical

onnections

re secure,

nd

all

access

anels

re n

place.

TIMER

With

the timer,

user selects

he various

cleaning

yclesof the

dishwasher.

he

timer

controls

all

the electricalunctions

f

the dishwasher

n

all stages

of each

cycle.All functions

an be traced

on

the chart.Diagram

provided

n this

service

manual .

To

Test The

Timer

lf the

timer s

suspected

f faultyoperation,

eference

imerchart and

electrical

schematic iagram nd proceed s follows:

1. lndex

the timer

to the first increment

f

the

normal

cycle,

which s

a drain

period.

2. lf

the

pump

motor ails

o operate

during

he first

cycle ncrement,

heck

or

power

at the

pump

motor

connector

lock, f

there

s no

power

check

he door

latch

switch,

f

there s

power,

check

he

pump

motor as

described n

this

section.

3. lf

the

pump

motor

does

operate,et

he imermotor

advance he

imer

hrough

the drain ncrement

o determine

f

the timer motorand

drive rain

are fully

operative.

4. Let

the

timer advance,

or index

it forward

o the

portion

of the

cycle in

question.

5.

lf

a

component

ontrolled

y the timer ails

o function s

the timer

advances

through

he cycle,

heck or voltage

t the imer erminals.f the

checkvoltage

is

supplied o

the component,

heck

he component

as described

n this

section.

Continuity

hrough

imer

contacts,

other controls,

and wires can

also

be

checked

with

an ohmmeter

ith

electrical

ower

disconnected.

lf

the timers

contacts ail

to close n

the sequence

hownon the

timer

chart

are

burned

have

esistance

measurable

ith

an ohmmeter),

r

if

timer

does

not

advance utomatically,

eplace

he imer.

To

ReplaceTimer

1.

Disconnect

ishwasher

rom

lectricalupply.

2. Removehe imer nob.



Figure

1

Figure

2

Remove

he

screwswhich

ocking

he control

panel

{See

igr.rre't). ernove

he knob

and

unscrew

he wo

screwswhich

ocking

he

timer on the control

pane "

{See

Figure

2.)

Take

down

he

darnaged

imer and

insbll

a

new

tirner,

evers6

procedures

o

cornplete

Figure

3

Figure 4

DOOR

LATCH

AND

SWITCI.I

A$SEIIilBLY

Tire latch

and

switch

are

located

n

the

docr assembly

behind

the control

panel.

The

dishwasher ill

not

operate

until lre

door

s

closed;

fre

atch

engages

he

door catch.

I'o lresf

Or Replace

Door

Switch.

1.

Disconnect

ishwasher

rom

electrical

supply.

2- Renrove

€re$/s

ecu*rg

thecontral

panei

o the innerdaor

{see

Figure1}.

3.

Remove

wire

eads

rorn latch

switcfi.

4,

Useohrnrneter

nd

check

switch or

ccntinuitu

5. lf the

$/vitch

ests s

good-

Check

dishwasher

eiectrical

powef.

Citeck o see if tirner s defective"

lf

switch s

defective emove

door

svrkch rom

latch

assennbly.

6.

lnstall

new

switcir

and

reyerce

procedures

o

cornplete

epairs.

To

Replace

Door Latctt

Assembly

1.

Disconnect

ishwasfrerrorn

dectrical

supply.

2.

Rernove

cr€ws

ecuri*g

jhe on rol

panel

o

the irrner

door.

3. Rernovewire

bads from

dsor

lakh

and

rernove

screwssecuring

door atchassembly

o

inner

door.

$ee

Figure

5.)



Figure

5

4.

lns(allnew

door

atch

assembly

nd

reverse

procedures

o cornplete

epairs.

FLOAT

SWITCH

ASSEMBLY

The

water ioat

assembly

s located

n the night

ower

side

of the dishwasher

the

portable ocatedbehind he lower ront crosspiece).Whentoo much waterenter

the

dishwasher,

the

water will

enter the float support hrough he overflow

plpe,

the

float

will make

he

floating

switchacts,

he electrical upply

o the

water vatue

willdisconnected

nd the

drain

purnp

keep

on

working.

lf

the switch

ails

o

operate. heck he

following:

.

Looseconnection

at the switch erminal.

.

Switch

not installed

properly.

.

Warped

stem on

float, not

contacting he

actuator

blade.

.

Float

support

restricts

ree

float

movernent.

.

Check

f

the float

support

s

cracked.

.

Food

or

foreign

material

restrictinE

ree

float

rnovernent.

Figure 7

To Remove

Or Rrylace

Floaf

Swfch

1

Dlsconnectdishwasher

rom

ebctrical

supply.

2. Rernove

electrical

eads o float

switch.

3"

Take

down the

switch

ftorn float

support-

4^ Insbllnew loat

$vitchand

everse

rocedures

s

co'mp{ete

epairs

$ee

igure

}

.lf the rubber



TROUBLESHOOTING

The

troubleshooting

heek ist

is common or

all dishwashermodels.

They

use different

parts

o

accomplish he

same hing and diagnosiswill

remain

imilar.

When

a

problem

arises,and

a

possible

cause is listed, ollow

the test,

remove

or

replace

procedures

as outline in this

service manual. The

wiring

diagram,

shematic and

timer

cycle

chat

is

a necessity when

making

electrical

hecks. n

most cases

an ohmmeter

will handle

all the

tests necessary.

For

checking any

particular

cycle of operation, t absolutely

necessary

that the

cycle be

set up as outlined

n the

product

owner's

guide.

SYMPTOM

CHECK HE

FOLLOWNG

REMENDY

Dishwasher

will not

operationwhen

tum on

efuse

blow

nor

tripped)

rSupply

line

receptacle,wiring

harness.

oTimer

contacts

open or burnt).

.Motor

(inoperative,

check

resistances).

oDoor

suritch

open

contacts)

oDoor

latch

not making

contact

with

door switch.

Replace use

or reset breaker.

Repair

or

replace.

Replace

imer.

Replacemotor.

Replace

door switch.

Replace

or adiust to make

contact.

Dishwasher

top washing

but draining

o

Overflow

occur. Check the reason of

overflow

pull

out the rubber

cap

wait for

a minute et water oour out.

Water

can't

pour

out from

float

support when

pull

out the rubber

cao.

o

Hole

in

the

float

supply

is

jammed.

Suck

with

dust

cleaneror other

let water

pour

out.

Dishwasher uns

but not

heat

.heater

elernent

open).

oTimer

contacts

open

or

burnt).

oWiring

or

terminal

(bumt

or

broken).

.

Thermostat s closed.

Replace

heater

element.

Replace

imer.

Repairor

replace.

Reolace.

Dishwasher

ill

not

stop.

rTimer

motor

inoperative).

rWiring

or terminal

(burnt

or

broken).

oTimer

open

or burnt

contact).

Replace imer.

Repairor replace.

Replace

imer.

Dishwasher runs with

door ooen

oDefective oor safetysuritch. Replacedoor safety switch.

Motor

hums

but

will

not

start

or run.

.start

winding(open).

.Motor

(bad

bearings or

locked

rotorl-

Replac€

motor.

Replacemotor.

Motor

trips

out on

in

terminal

thermal overload

protector.

.Start

relay not

dropping out.

.lmproper

voltage.

oSeal

aces

binding.

rMotor

shaft

binding.

oMotor

windings

shorted.

rGlass

or foreaontems n

oumo.

Replace tart relay.

Checkvoltage.

Repairor replace.

Repairor replace.

Repairmotor.

Clean

nd cleararea.



Repeated

dishwasher

cycles

eTimer

contacts

pen

or burnt)

rMotor

(inoperative,

check

resistances).

Replace

imer.

Replace

imer.

Timer

does

not

advance

automatically.

.Timer

motor

stalled

r open).

rCheck

timer for

power

o timer

motor.

oTimer

shaft

binding

or knob

interferenceo escutcheon.

Replace

imer.

Replace

imer.

Repair

r adjust.

Dishwasher

will

not

fill

with water.

oWater

supply

turns

off.

rDefective

nlet

valve.

rCheck

valve

screen

for

obstructions.

rDefective

l oat

switch.

rTimer

contacB

(open

or burnt).

eWirinq

broken

or

burntl.

Turn

water

supply

on.

Replacenlet

valve.

Disassemble

nd

cleanscreen.

Replace

witch.

Replace

imer.

Repair

or replace.

lncomplete

water

ill.

oLow

water

pressure.

oClogged

water

inlet valve

screen.

rTimer

advanced

past

start of fill

cycle.

.Heavy

water

supply usage

elsewhere

n home,

rKinked or restricted fill hose,

water nlet

valve

o fill

tunnel.

Minimum

water

pressure

of

1sP.S.r

Clean

water nlet

valve

screen.

Instruct

customer/user

o

turn

timer

dial

to start indicator

mark.

Use

dishwasher

when

water

usage s

at

a

minimum.

Correctas needed.

Too

much

water ill.

.Water

inlet

fill valve

defective.

oTimer

ontacB

open

or burnt).

.Float

arm

binding

or

out of

adjustment.

oPossibility

ustomer/user

umed

timer

past

drain

cycle.

Replace ater

nlet

ill valve.

Replace

imer.

Repair,

djust

or replace.

Instruct

customer/user.

Dishwasher

ill

not

pump

out.

oDrain

pump

s restricted.

oDamaged

mpeller.

oWiring

or

terminal

(contacts

open

or burnt).

Clear estrictions.

Replace

rain

pump.

Replace

imer.

Water

siphons

out.

.Drain

hose

oop

o low.

oDrain

ine

connected

o a

floor

drainnot vented.

Move

o

proper

height.

Install

vent

air

gap

at counter

top.

Water

eaks. .Spray

arm not

rotating

or

split.

O

Overcharge

of water.

oTub

eal

(torn,

worn

or loose).

oDishwasher

door

not

sealing

properly.

oDishwasher

s not

evel_

oOverburden

(wrong

type of

detergent).

oHose

clamps

oose.

.Heater

element

mounting nuts

loose.

oWater

seal leaking.

oO-ring

s not n

position.

oMotor

and

pump

assembly not

seated

proper

n

tub liner

bottom.

Check

for

proper

rotation

or

replacesprayarm.

Check

and

correct for

proper

fi l l .

Replaceub

seal.

Adjust

door

latch

assembly

and/or

strike.

Level

dishwasher

properly.

Instructs

customer/user.

Tighten

all

clamps

securely.

Tighten

he nut.

Use a

new

water

seal.

Adjust the

ring

or

replace

a

new.

Replace

eal.

Poorwashability. .Spray arm not rotating.

olmproper

loading

of

dishes,

pans

and

other.

.Detergent

dispenser

noperative.

rlnsufficient

amount

of detergent.

Orthe

detergent

s old.

rDamaged

or

the impeller

is

broken.

.Detergent

not

dissolve.

Check or properrotation.

Instructs

customer/user

on

proper

loading

per

owner's

guide.

Repairor replace

dispenser.

On

proper

amount of fresh

deter

gent

o

use.

Replace

ump

assembly.

Incoming

water

temperature

of

140"F

is required

to

proper

dissolve

deteroent.



Poor

drying

of dishes

olmproper

oading

of dishes,

pots

and other.

.Heating

element

open).

olncoming

water

emperature oo

low,

rWiring

or

terminal

(broken

or

burnt).

lnstruct

customer/usr on

proper

loading

per

owner' s

guide.

Replaceheatingelement.

lncoming water

temperature of

140"F or

bestdrying

esults.

Replaceor repair.

Detergentcup will not

open.

oCup binding

oRoll pin

retainer

or shaft broken.

oDefective

bi-metal.

rTimer

contact

(ooen

or broken).

Repairor replace.

Replace

pin,

retainer

or shaft.

Repair

or

replace.

Reolace imer.

Door will

not lath.

Door

latch

damaqed.

Replacedoor latch.

Rinse

agent iguid

will

not

eject.

.Electromagnetic

valve

defective.

rRinse

agent dispenser

not

mounted

correctly.

.Plunger

stuck or held in closed

oosition^

Replacevalve.

Mount

securely o

rear

of inner

door

panel.

Free

plunger

or adjust

plunger

release.

Rinseagent

iquid

eaks.

ocontainer

racker

or broken.

oDefective

eal on

plunger.

oOver

illing

container.

ReplaceGonEilner.

Replace

plunger.

Follow instructions n

owner's

manual.

Noisy

pump

assembly.

.lmpellers

not

properly

shimmed

or rubbing.

oPump

perts

not

properly

installed.

rDebris

in

bottom of tub sump

area.

oDefective

motor

bearinqs.

Use shim

gauge

furnished in

impeller

and seal kit, when

sealsare properlyshimmed he

impellers will

be

in

correct

operating

position.

Inspect

and correct.

Cleanout sump area.

Replacemotor.

Dishwasher

ontinues o

fill

or continues to till

even though in

case of

there is no

voltage o fill

valve.

oSomething

(dart

or foreign

material) under

diaphragm

in

water nlet valve.

rDefective

water nlet ill valve.

Clean water inlet valve

or

replace.

Replacewater inlet

valve.

Detergent left in

dispenser.

oDetergent

up

held or blocked

by argedishes.

.Disp€nser

wet

when detergent

was added.

On

proper

oading

dishes.

Instructs

customer/user.

Softener leaking

oSoftener

broken.

oSoftener

nut loosen.

Faeplace

onener.

Screw down softenercao.

Leaking orm

air

nlet.

.Air

inlet

nut oose.

oAir

nlet

nstalluo side down.

Screwdown air nlet nut.

Reinstall ir inlet orooerlv.

22-172 sears ddw18 dishwasher

Documents