Maytag WU100 User manual

INDEX

SUBJECT

SECTION

. ELECTRICAL

TESTEQUIPMENT PAGE

1-1

ElectricalComponentTesting ......1-1

38559

Maytag

Appliance

TestMeter ...... 1-2

38519Volt-Wattmeter.. .....1-6

SECTION

2 . ELECTRICAL

- MECHANICAL

TROUBLESHOOTING

(See

Sectton2lor

DetatledIndex)

SECTION

3 . SERVICE

PROCEDURES

O Control

Panel

Assembly

Timer

Motor

RapidAdvance

Motor

Knoband

Dial.. .

ControlSwitches

IndicatorLights

MicroprocessorBoard ..3-5

TouchPad.. .... 3-6

38186

Clamp-On

Ammeter

38133

Motor

Test

Cord

Water

ValveTest ... 1-11

RinseDispenserTest. .....1-12

38206

Circuit

TestBoard ... 1-13

1-9

2-1

3-1

3-2

3-3

3-4

Transformer

....

Varistor

Relavs

@ ruuAssembly

Tub..

Tublnsulation...

BaseFrame

TubSupport

Front

& RearL

HingePins eveling

Legs

Terminal

Box.. 3-14

Drip

Flange

andShield ... ... 3-14

HeatingElement

Heater

Hook .

Thermostat

DoorStrike

TopFlange

andChannel

(9 Front,

Access

and

ToePanels

Front

and

AccessPanel

3-7

3-8

3-9

3-10

3-1

3-11

3-12

3-13

3-15

3-16

3-17

3-18

@ tnnerDoor . .. 3-22

DoorAdjustmeni

.:..::..:. ......s-2s

DoorSprings.... .....3-23

DoorHinge ....3-24

Door

VentAssembly .. 3'24

DoorPlug ....^ 3-25

DoorGasket.... .....3-25

@ OoorLatchMechanismandDoor

Switch .. 3-27

Door

Switch .

... 3-28

@ OetergentCup

Assembly ... 3-29

SUBJECT PAGE

/=\

!JRinseConditionerDispenser ......3-32

fil fittSvstem ... 3-34

v WaterValve ...3-35

24VDCWaterValve

(Diode) .. 3-36

FloatAssembly... ....3-37

Vent

Cover .... 3-39

(f WashSystem ......3-40

WaterCirculation .....3-41

UpperWashArm. ....3-42

UpperWashArmHose ......3-42

LowerWashArm

andCenter

Spray

Nozzle . 3-42

Strainer . 3-43

Filter. ...3-43

BackFlushArm

andSealRings ..... 3-44

LowerWashArmBearing

.... ......3-44

LowerWashArmSupport 3-44

PowerModule ..3-45

PumpOover .....3-47

Circulatinglmpeller .....3-47

Baffle ... .. 3-47

Drainlmpeller

and

"0"

Ring ..

. 3-48

Boot

Seal 3-48

BearingAssembly

andPulley .

.. 3-48

(p Drive

Motor .. 3-50

Belt.. ...3-52

@AtowerAssembly ....3-53

AirlnletAssembly ....3-55

@ nacts andUpperRackTrackAssembly .. 3-56

LowerDishRack .....3-56

UpperDishRack .....3-56

Rack

TrackRemoval .. 3-56

Rack

Track

Shaftand

Roller .. 3-57

DishRackRoller ......3-57

CupRack ......3-57

AdjustableUpperRack

. .....3-57

(p Cabinet,

Woodtop

and

BaseFrame ...... 3-59

WoodTop. ....3-60

Cabinet 3-60

Casters 3-60

Front

CasterSupport .. 3-60

BaseFrame ....3-60

RetainerforFaucet

Coupler .. 3-61

[! Faucet

CouplerandPower

Cord

(WC) .... 3-62

Faucet

Coupler

Disconnect

Lever

Fill

andDrainHoses

Nipple

for

Coupler

d ThumbRelease 3-62

3-63

3-64

Faucet

Coupler . 3-64

GasketforCouplerlnlet .....3-64

PowerCord. ...3-64

SECTION4-SCHEMATICS .......4-1

"OO"Models ........4-2

"O1"Models ...4-24

"02"

Models ...4-36

WU1000Model ......4-48

SUBJECT PAGE

SECTION5.GENERALINFORMATION ......5-1

Specifications "....' 5'2

UndercounterModels '..5-2

Convertible

Models ' ' .. 5-4

WaterOonsumption

.... ...' 5-4

CycleCharts ..5-7

Special

WashCycles ......5-15

lnstallation

Installation

Reouirements

...

Built-in

Models

Convertible

Models

50HzOperatton

Installation

- Built-in

Models

Installation

- Convertible

Models

Installation

Accessories

....

Dishwasher

Warranty

Procedures

Common

Washability

Problems .. .. 5-33

WhatToDolf

. .....5-38

DoorSpring

Adjustment

Odor

from

NewDishwasher

Oversudsing

WinterizingDishwasher ......5-38

RustStains-Racks&Tub ...5-39

Dish

RackDamaged .. 5-39

WoodTop-Warpage.. ......5-39

5-18

5-19

5-20

5-21

5-24

5-25

5-28

5-30

5-38

COMPONENT

INDEX

SUBJECT PAGE

AdjustableUpperRack ...3-57

AirInletAssembly .

. 3-55

BackFlushArmandSeal

Rings .. 3-44

Baffle ......3-47

Base

Frame

(WC) .. 3-60

BaseFrame

(WU) .. 3-12

BearingAssemblyandPulley ....3-48

Belt.. ......3-52

BlowerAssembly ..3-53

BootSeal ... 3-48

Cabinet ....3-60

Cabinet,

WoodTop

and

Base

Frame .. .. 3-59

Casters ....3-60

Circulatinglmpeller ......3-47

Control

PanelAssembly ...3-1

ControlSwitches ....3-4

CupRack ...3-57

DetergentCupAssembly... .....3-29

Disconnect

Lever

and

ThumbRelease .

. 3-63

DishRackRoller ...3-57

DoorAdjustment ...3-23

DoorGasket

.... ..3-25

DoorHinge . 3-24

DoorLatch

Mechanism

andDoor

Switch ... 3-27,3-28

DoorPlug ..3-25

DoorSprings.... ..3-23

Door

Strike . 3-17

DoorVentAssembly ......3-24

Drainlmpellerand"O"Ring .....3-48

DripFlange

and

Shield ... 3-14

DriveMotor.... ...3-50

Faucet

CouplerandPower

Cord

(WC) ... 3-62,3-64

Fill

and

DrainHoses

(WC) 3-63

Fill

System ..3-34

Filter. ......3-43

FloatAssembly.. 3-37

Front,AccessandToePanels .....3-18,3-19

FronlCasterSupport .....3-60

Front

and

RearLevelingLegs .... 3-13

Gasket

for

Coupler

Inlet.. 3-64

HeaterHook. ..... 3-16

HeatingElement ... 3-15

HingePins. 3-13

fndicatorlights .....3-4

fnnerDoor .. 3-22

KnobandDial.. ....3-3

LowerDish

Rack .. 3-56

LowerWashArmBearing.... ...3-44

LowerWashArm

andCenterSpray

Nozzle .... 3-42

LowerWashArmSupport.... ...3-44

MicroprocessorBoard .....3-5

Nipplefor

Coupler 3-64

PowerCord. ......3-64

PowerModule .....3-45

Pumo

Cover ..... . 3-47

SUBJECT PAGE

RackTrackRemoval .....3-56

RackTrackShaftandRoller .....3-57

RacksandUpperRackTrackAssembly ......3-56

Rapid

AdvanceTimerMotor ... ... 3-3

Relays ......3-9

RetainerforFaucetCoupler .....3-61

Rinse

ConditionerDispenser ... .. 3-32

Strainer .. .. 3-43

Terminal

Box.. ....3-14

Thermostat 3-16

Timer ....... 3-2

TimerMotor ..3-3

TopFlangeandChannel

... .....3-17

TouchPad .. 3-6

Transformer..... ...3-7

Tub.. ......3-11

TubAssembly

... .. 3-10

Tublnsulation.. ...3-11

TubSupport ......3-12

Upper

DishRack

Upper

WashArm 3-56

3-42

UpperWashArmHose ... 3-42

Varistor .....3-8

Vent

Cover 3-39

WashSystem .....3-40

WaterCirculation ..3-41

Water

Valve .. 3-35.3-36

WoodTop

. .3-60

This service manual is intended fo assisf you in diagnosing inoperative conditions which may

develop in the "00", "0l"and "02" Jetclean model dishwasher.Electricalcomponenttesting is,

for themostpart, made withan appliance testmeter and consistsof checkingforopenor closed

circuits. Mechanical checks are made through sight and sound, along with the use of a volt-

wattmeter

andclamp-onammeter.

This manual is designed for the

construction of Maytag products. technician who is familiar with the operation and

The first and most importantstep of any

service

callis to accuratelydetermine

what

thecomplaint

is.Thisis best

accomplished

by questioning

the customer,

findingout

what

the product

is or isn'tdoingand why

they feel a problem exists. Once the

complaint

is understood,using

thismanual

becomes

relativelyeasy.

,;o

id.

..itt.

,t tY f-

rA\

til'l'l

Thismanualcoversservice

procedures

andtroubleshooting

checks

for

the

following

models.

Many

theservice

procedures

andtroubleshooting

theydiffer,

itwillbe

noted.

"Microprocessor"

wu1000

thesameonall

models.

When

"00"

WUlOO

wu-wc300

WU5OO

WU-WC70O

WU9OO

"01"

WU1O1

wu-wc301

WU501

wu-wc701

WU901

"02"

wu202

WU-WC3O2

WU5O2

WU-WC702

WU9O2

checksare

Section1

covers

Electrical

TestEquipmentwhichis

available

fromThe

Maytag

Company

for

use

onthedishwasher.This

sectionalsocovers

general

useofthe

equipment,

addition

providing

specific

information

onamperage,

wattage

andresistancereadings

which

shouldbeseen.

Section 2 covers Electrical-Mechanical

Troubleshooting

and provides a list of possible

complaints.Find

thecomplaintwhich

you

feel

bestmatches

that

provided

bythecustomerand

turntotheappropriate

page(s).

You

willfind

alist

possible

electricalandmechanical

problems

for

thecomplaint,whichhave

been

listedin

their

orderof:

1. Easein

checking.

2. Probability.

Systematicallyeliminating

these

possibilities

will

allow

you

find

andcorrect

the

problem.

Section 3 coversService

Procedures.

This sectionwill provide

information

on location

components,

disassembly

and/or

reassembly

procedures,

the

purpose

and/orfunction

ofthe

part

and

some

instances

specific

checksto

made.

Section4

covers

Electrical

Schematics

and

Electrical

Flow

Charts.

Section5 coversGenerallnformation

suchasspecifications,

installationrequirements,

cycle

charts,

etc.

ail

\*_ -rc

.-'fi\,.

r-t "4-

r,Jft-"

'-)

\]'

rH\

'Su!

a- tt

vEm

(2dr \--l

#r*_

C*w)

Subject Page

OControl

PanelAssembly ...3-1

@fuUAsembly ..3-10

@Front

Access

and

ToePanels...3-18

@lnnerDoor ....3-22

@Door

Latch

and

Door

Switch

....3-27

@Detergent

Cup

Assembly ..3-29

ORinse

ConditionerDispenser...3-32

@rill

system ....3-34

@Wastr

System .

3-40

@Drive

Motor ...3.50

@BlowerAssembly ...3-53

@Racks

and

RackTrack ....3-56

-OCaOinet,

Wood

TopandBase

Frame

...3-59

Faucet

Coupler

and

Power

Cord

3-62

@,6

@@ra#

V=:.\_)

1--4

r---j-I

"#P

#*"

ffi

This manual suits for next models

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