Maytag 111990, D9900, D9800, D9700, D8600 Service Manual

Maytag

111990"

Automatic

Dryers

Service

Manual

16000132

Issued

1990

Revised

2/98

Contents

SECTION 1. ELECTRICAL TEST EQUIPMENT "

1-1

APPLIANCE TEST METER

1-1

CLAMP-ON AMMETER

'.

. . . . . . . . . . . . . . . . . . . . . . .

..

1-3

MOTOR TEST CORD 1-4
VOLTAGE CHECKS 1-5
TEMPERATURE READINGS RANGE (50°F.

to

300°F.) 1-6

SECTION 2. ELECTRICAL - MECHANICAL TROUBLESHOOTING

2-1

WILL NOT RUN

2-1
WILL NOT DRY ' 2-2
WILL NOT SHUT OFF

,...............................

2-2

MISCELLANEOUS

,...................................

2-6

MICROPROCESSOR

BOARD

CONTROL MODELS 2-7

DRYER (MICROPROCESSOR BOARD CONTROL)

2-11

FAULT CODE 2-15

SECTION 3. SERVICE PROCEDURES

3-1

ACCESS

TO

CONTROL PANEL COMPONENTS

3-1

CONTROL PANEL ASSEMBLY COMPONENTS

3-1

MICROPROCESSOR

BOARD

CONTROL 3-10

FRONT PANEL AND COMPONENTS 3-13

TUMBLER AND RELATED COMPONENTS 3-17

THERMOSTATS 3-24
BLOWER

3··27

DRIVE MOTOR

AND

IDLER ASSEMBLY

,........................

3-28

HEATING ELEMENT

AND

RELATED COMPONENTS -- ELECTRIC MODELS

3-31
GAS VALVE AND RELATED COMPONENTS 3-34
CABINET AND TOP COVER

3-41

SECTION 4. PRE-INSTALLATION CONSIDERATIONS

4-1

LOCATING DRYER

4-1
EXHAUSTING 4-2
ADJUSTING

MAIN

BURNER 4-6
ELECTRICAL REQUIREMENTS 4-8
ELECTRICAL CONNECTIONS 4-10
A!?DITIONAL INFORMATION 4-12
PERSONAL SAFETY PRECAUTIONS

'.'

. .

..

4-12

SECTION 5. GENERAL INFORMATION

5-1

HEAT SOURCE

5-1
MODEL CHART 5-2
SCHEMATICS 5-3

ED/GD401 1090 Contents

ED/GD401 1090

Contents

ii

INTRODUCTION

This service manual is

intended

to assist

youindiagnosing

conditions

which

may

develop. Electrical

component

testingisfor

the

most part,

made

with

an

appliance

test

meter

and consists of checking

for

open

or

closed circuits. Mechanical checks

are

made

through

sight

and sound,

along

with

the

use of a clamp-on ammeter.

This

manualisdesigned

for

the

technician

whoisfamiliar

with

the

operation

and

construction

of

May

tag

products.

Information

containedinthis

manualisintended

for

use

byaqualified

service

technician,

familiar

with

proper

and

safe

procedures

to

be

followed

when

repairing

an

electrical

appliance.

All

tests

and

repairs

should

be

performed

byaqualified

service

technician

equipped

with

proper

tools

and

measuring

devices.

All

component

replacements

should

be

made

byaqualified

service

technician,

using

only

MA

yeOR

replacement

parts.

Improper

assembly

or

adjustment

may

occurifservice

or

repairisattempted

by

persons

other

than

qualified

service

technicians

orifparts

other

than

MA

yeOR

replacement

parts

are

used.

Improper

assembly

or

adjustment

can

cause

haz-

ardous

conditions.

There can

be

riskofinjury

or

electrical

shock

while

performing

services

or

repairs.

Injury

or

electrical

shock

can

be

serious

or

even

fatal.

The

first

and

most

important

stepofany

service

call istoaccurately

determine

what

the

complaint

is. This is best

accomplished

by

questioning

the

customer,

finding

out what

the

prodUct isorisn't

doing

and why

they

feel a

problem

exists.

Section 1 covers Electrical Test Equipment. This sections also

covers

general use

of

the

equipment;

an

Appliance

Test Meter, Clamp-On

Ammeter

and

Motor

Test

Cord.

Section 2

covers

Electrical-Mechanical

Troubleshooting

and a

listofpossible

com-

plaints. Find

the

complaint

which

you

feel best matches that

provided

by

the

cus-

tomer

and

turntothe

appropriate

page(s). You

will

find a

listofpossible

electrical

and mechanical

problems

for

the

complaint,

which

have been listedinthere

order

\

of:

1.

Easeinchecking.

2.

Probability.

ED/GD401 1090 INTRODUCTION Iii

Systematically

eliminating

these

possibilities

will

allow

youtofind

and

correct

the

problem.

Section 3

covers

Service

Procedures.

This

section

will

provide

information

on

locationofcomponents,

disassembly

and/or

reassembly

procedures,

the

purpos,e

and/or

functionofthe

part

andinsome

instances

specific

checkstobe

made.

Section 4

covers

Pre-Installation

Considerations.

This

provides

information

on

location

and

exhaustingofdryer,

main

burner

adjustment,

electrical

requirements

and

connections.

Section 5

covers

General

Information.

This

section

covers

brief

specifications,

cycle

descriptions

and

schematics.

\

....

ED/GD401 1090

INTRODUCTION iv

SECTION 1. ELECTRICAL TEST EQUIPMENT

The

equipment

required

to

service

May

tag

products

depends

largely

upon

the

condition

encountered.

Locating

a

malfunction

will

often

require

the

use

of

electrical

testing

equipment

such as:

•

Appliance

Test

Meter

•

Clamp-on

Ammeter

•

Motor

Test

Cord

APPLIANCE TEST METER

Probably

the

easiest

meansoftesting

electrical

components

is

~'continuity

testing"

with an

Appliance

Test

Meter.

Continuity

is a

complete

or

continuous

path

from

one

point

in an

electrical

circuittoanother

point.

The

obvious

advantagesofbeing

able

to

check electrical

components

and

cir-

cuits

without

power

applied

is one

of

the

featuresofthe

ohmmeter.

Multiple

ranges

allow

accurate

determination

of

resistancesofboth

single

components

and

entire

circuit

paths. Resistance is

measuredin"ohms".

An

Appliance

Test

Meter

is a

multi-

purpose

tester

combining

an AC-DC

voltage

tester

withamulti-range

ohmmeter.

\

SF

2

APPLIANCE

TEST

METER

SET METER FOR USE

AS

FOLLOWS:

1.

Calibrate

meter

by

touching

test

probes

together

and

turning

adjusting

dial

until

meter

reads

"0"

on

the

ohm

scale. Recheck

cali-

bration

whenever

adjusting

dial

for

ohms

settingsischanged. (Replace

battery

if

adjustment

will

not

bring

meter

reading

to

"0".)

2.

Select

the

scale

most

easily

read

and place test

probes

on respective

terminals.

When checking a switch,

the

reading

would

normally

be

either

open

or

closed. A

reading

of

70 on

the

R x 10 scale

would

for

example

be 700

ohms

resistance.

ED/GD401 1090

SECTION1.ELECTRICAL TEST EQUIPMENT 1-1

~f~

~.,~"]

Q

CAUTION

---------------,

Always

be

sure

the

power

has been

disconnected

before

making

resist-

ance

measurements.

Failuretodo

so

will

resultindamagetoyour

meter! Internal

batteries

provide

all

the

power

needed to make resist-

ance checks. They

should

be

checked at least once a

year

and

replaced as needed.

For

the

most

part, we

will

only

be

con-

cerned

with

continuity.

Is

there

a path

or

not? References

are

made

between

a

"closed"

(continuity)

reading

and an

"open"

(no

continuity)

reading.

One

note,

when

you

get an

"open"

reading,

tryahigher

resistance

range

(setting).

A

very

high

resistance

appea~s

as an

"open"

on

the

lower

ranges.

For

best

accuracy

alw~ys

"re-zero"

meter

when

changing

ranges

and/or

the

physical

positionofthe

meter.

Continuity

testing,

as

related

to an elec-

\

tricarcomponent,

is

the

checkofa

part

for

an

"open"

or

"closed"

circuit.

Electrical

components

fall into

two

general

categories.

1.

Loads-

Devices

that

use

or

consume

electricity:

Examples

ED/GD401 1090

would

include

drive

motor,

heating

elements, lamps,

timer

and

solenoid

coils.

2.

Switches

- Devices

that

control

the

supplyofelectricity

to the load

or

loads

in a

circuit.

Examples

include

door

switches,

timer

contacts,

selector

switch and

relay

contacts.

Continuity

testof"load"

devices

will

show

varying

levelsofresistance

from

very

low

for

some

transformer

and

motor

windingstovery

high

for

some

timer

motors

and

components

on elec-

tronic

control

boards.

Usually

it is

more

importanttoknowifthere

is a

path

for

current

.flow

throughadevice

(continuity)

thantoknow

the

exact

resistance (ohms)

of

the

device.

Continuity

testsofswitches

will

show

virtually

no resistance, even

low

values

indicates

burned

or

dirty

contacts in a

switch.

Continuity

testingisa

processofelimi-

nating

those

electrical

components

involved

in a

given

functionofthe

appliance,

until

the

inoperative

part

is

found.

By

reviewing

the

listofpossible

electrical

problems

underagiven

con-

dition,

and

then

performing

appropriate

continuity

checks

on

the

parts

involved,

you

should

be

able

to locate

the

elec-

trical

component

whichisinoperative.

When checking

components

or

circuit

paths

for

continuity,

external

wiring

should

be

disconnectedtoeliminate

false

readings

through

external

paths.

Isolate what

you

wanttotest.

The

following

shows

typical

resistance

values

for

someofthe

components

found

on

May

tag

dryers.

Heating

Element

-- 10.23

ohms.

SECTION1.ELECTRICAL TEST EQUIPMENT 1-2

Gas

Valve

Disconnect

radiant

sensor

and

igniter

wires.

Measure

across

igniter

wires

or

igniter

plug

from

valvetoget a

resist-

ance

valueof-- 425-450

ohms.

Measure

across

sensor

wires

to get a

resistance

of

-- 450-475

ohms.

Drive

Motor

Red

terminal

to

Gray

terminal

-- 1.5

ohms.

In

order

to

measure

the

individual

windings

the

red

and

gray

wires

will

havetobe

pulled

offofthe

start switch.

Run

winding

only

-- 2.25

ohms.

Start Winding

only

-- 3

ohms.

Glow

Bar

Igniter

Becauseofthe

make-upofthe

igniter,

the resistance

will

vary

overarather

wide

range. Values

from

180

ohms

to

400

ohms

would

be

typical

with

an

igniteratroom

temperature.

These

values

are

provided

so

that

you

may

have

an

ideaofthe

resistance

that

you

can see in

testing.

These resist-

ances

are

not

meanttobe used as the

exact

valuestodetermine

whether

a

t;omponent

should

be replaced. They

\

are

provided

so

that

you

may

have

an

ideaofthe

resistance

that

you

can see

in

testing

components.

EDIGD401 1090

CLAMP-ON

AMMETER

Each

circuitinan

appliance

has a

"normal"

current

draw

which

is an

indi-

cationofthe

performanceofthat

circuit.

Current

draw

levels, less

than

or

more

than

normal,

give

cluestomalfunctions.

The clamp-on

ammeter

measures

these

currents

without

breaking

the

circuit

by

measuring

the

strengthofthe

magnetic

field

developed

around

each

conductor.

Current

is read

by

separating

the

con-

ductors

and

clamping

the

jawsofthe

ammeter

around

each

conductor

on

which

currentisto

be read.

Low

amperage

readings

indicate

problems

such as

damaged

heating

elements,

etc.

High

amperage

readings

indicate

the

unit

being

tested is

operating

under

an

increased

mechanicalorelectrical

load.

SECTION1.ELECTRICAL TEST EQUIPMENT

1·3

Note:

Overloads

onacircuit

breaker

or

fuse can be

tracedtothe

product

being

tested

or

the

circuit

breaker

(or

fuse) by

checking

the

product's

current

draw.Ifthe

amperage

reading

is less

than

the

breaker

reading,

the

breaker

or

fuse

box

is at fault.

USE

OF

AMMETER

ON

DRYER

There

are

two

currentsofconcern

to

us

in an

electric

dryer;

the

heating

element

current

and

the

drive

motor

current.

These

currents

can be meas-

ured

by useofa

"split

line

cord"

exten-

sion

for

the

dryer

cord

or

by

attaching

the

ammetertothe

respective

power

line

wiresatthe

dryer

terminal

block.

Current

measured

should

be

21

amps

on

the

heating

element

sideofthe

line,

24

amps

on

the

drive

motor

sideofthe

line

and4amps

on

the

center

or

neutral

line.

A

\".

MOTOR TEST CORD

The

motor

test

cord

may

be used.

to

electrically

check

operationofthe

drive

motor

while

still

installedinthe

unit.

Testing

of

the

motorinthis

manner

determines

whether

or

notitwill

run

independently

of

other

electrical

com-

ponents.

Two test

leads

are

required

to

check

operationofthe

drive

motor.

To

check

the

motor

for

running,

hook

up

test

cord

as

shown.

WHORGY

OVERLOAD'-

,

PROTECTOR ( "

, \

START

RUN'

\

I \

,START

: AD

YEL

0 RUN

0---

I

START Q . CENT. SWITCH

~~N

0-----

-q-oBLK

BU

....

,',

...

/

..........

__

....

DRIVE MOTOR

Locationofterminals

on

motor

may

vary

from

drawing.

ED/GD401 1090 SECTION

1.

ELECTRICAL TEST EQUIPMENT 1-4

CHECKING

HEAT

CONTACTS,

MOTOR

CENTRIFUGAL

SWITCH

1.

Disconnect

dryer

power

source.

2.

Gain accesstomotor

and

remove

blue

and

black

leads

from

motor

switch.

3. Use

eitherofthe

following

test

methods

using

appropriate

caution.

A.

Live

test

-- USE

CAUTION

1.

Usingadouble

insulated

spade

con-

nector,

connect

blue

and

black

wires

removed

from

motor

switch.

2. Reconnect

dryer

to

power

and

set

for

heat cycle.

3. Start

dryer,ifheat is

produced,

replace

motor

switch

on

motor.

If

no heat,

continue

additional

circuit

checks.

B.

Continuity

Check

(Insulate

wires

removed

from

motor

sWitch.)

1.

Using

clip

adapters,

attach

meter

probestothe

blue

and

black

motor

switch

terminals.

2.

Arrange

probe

leads

away

from

any

moving

parts

and

set

meter

on

RX1

range.

3.

Reconnect

dryer

to

power

source

and

start

dryer,

continuity

on

meter

indicates

good

switch. No

conti-

nuity,

replace

motor

switch

or

motor.

4.

Open

door

to

stop

dryer.

When

\

motor

stops,

motor

switch

contacts

must

open,ifnot

replace

switch

or

motor.

ED/GD401 1090

VOLTAGE CHECKS

For

the

most part

these

checks

will

consistoftaking

readingsatthe

wall

receptacleinorder

to

delermine

the

availability

of

voltagetothe

product.

Voltage checks on

individual

compo-

nentsofa

product

are

not

recom-

mended

duetothe

possibility

of

electrical

shock.

Component

part

testing

is best

accomplished

through

continuity

checks

with

an

Appliance

Test

Meter.

Note:

Useofthe

meter

on

voltage

higher

than

the

indicated

range

may

cause

permanent

damagetothe

meter.

To

prevent

damage,

first

select

highest

range

for

readings

which

fall

within

the

lower

scale.

SET UP METER FOR USE

AS

FOLLOWS:

1.

Turn

selector

knobtodesired

meter

function

and

appropriate

range.

2.

Plug

black

lead

into

socket

marked

-

(negative).

3. Plug red

lead

into

socket

marked

+

(positive).

4.

Place test

leads

into

receptacle

in

order

to

determine

voltage

avail-

able.

SECTION1.ELECTRICAL TEST EQUIPMENT 1-5

TEMPERATURE READINGS

RANGE

(50°F. to 300°F.)

Air

temperature

readings

can be taken

at

the

lint

filter

by

removing

the

filter

and

placing

the

accessory

temperature

probe

(Part NO. 38562)

directlyinthe

lint

filter

opening.

Cyclingofthe

ther-

mostats can

actually

be

observed

as

can the

temperatureofthe

exhausted

air.

SET UP METER FOR USE

AS

FOLLOWS:

1.

Turn

selector

knob

to TEMP.

2.

Insert

black

negative

leadoftemper-

ature

probe

into

socket

marked

-

(negative).

3.

Insert red

positive

leadoftemper-

ature

probe

into

socket

marked

+

(positive).

4.

To

calibrate

meter,

touch

black

plug

from

red

positive

leadtoblack

nega-

tive

lead

and

turn

calibration

dial

until

needle

aligns

with

CAL.

5.

Probeisreadytouse -- read

blue

scale

on

meter

face

marked

TEMP.

ED/GD401 1090

SECTION

1.

ELECTRICAL TEST EQUIPMENT 1-6

SECTION

2.

ELECTRICAL - MECHANICAL

TROUBLESHOOTING

WILL NOT RUN

Dryer

won't

start

or

run.

•

All

wires

are

hooked

uptotheir

corre-

sponding

terminals.

•

Dryerisplugged

in.

•

Blown

fuseorcircuit

breaker.

•

Door

switch.

•

Push-to-start

switch.

•

Timer.

•

Drive

motor.

•

Thermal

fuse.

Drive

motor

runs--drum

won't

turn.

•

Belt

offorbroken.

•

Motor

pulley

loose

or

off.

•

Idler

tension

spring.

•

Idler

pulley.

Dryer

runsafew

minutes

and

then

stops

--Motor

overload

protector

opens.

•

Lint

build-up

around

drive

motor.

•

Low

voltage.

•

Blower

impeller

blocked.

e,

Drive

motor.

\\.

Dryer

blows

fuses

or

trips

circuit

breaker.

Electric

Models

• The

amperage

readings

areat240

volts.

One

line

will

be

24

amps

and

the

other

line

will

be

21

amps.

The

neutral

line

will

beat4

amps.

If

you

have

the

above

amperage

readings,

the

problemisnot

the

dryer.

Check

the

fuse

box,

circuit

breaker

or

house

wiring.

•

Shorted

heating

element.

•

Incorrect

wiring

orawire

shorting

to

ground.

•

Drive

motor.

Gas

Models

•

During

ignition

the

dryer

will

draw

7

amps.

With

the

burner

on,

the

dryer

will

draw

4.5

amps.

If

the

dryer

is

drawing

the

above

amperage

and

the

fuse

blows,

the

problemisnot

the

dryer.

Check

the

fuse

box,

circuit

breaker

or

house

wiring.

•

Igniter.

•

Incorrect

wiring

orawire

shorting

to

ground.

•

Drive

motor.

CAUTION

---------------------------,

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resist-

ance

readings.

ED/GD401 1090

SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING

2.,.1

WILL NOT DRY

Dryer

won't

heat

(motor

runs).

ELECTRIC MODELS

•

Blown

fuseortripped

circuit

breaker.

• Open

heating

element.

•

Hi-limit

thermostat.

•

Regulating

thermostat.

•

Temperature

selector

switch.

• Timer.

• Cycle

selector

switch (where used).

•

Drive

motor

start

switch.

Improper

Drying--Clothes

Wrinkled

--

Harsh

-- Taking

too

long

•

Lint

filter

is clean.

• Restriction in exhaust.

• Exhaust

hood

door

stuck.

• Exhaust

too

long.

•

Poor

make-up

air.

•

Incorrect

drum

speed.

Adjust

motor

pulley

or

wrong

motor

pulley.

•

Blower

impeller

bound.

•

Be

sure

elementorgas

valve

cycles

on and off.

•

Shorted

heating

element-electric

dryers

only.

•

Customer

ove'tloading

dryer.

• Check

clothing

labels

for

fabric

content.

WILL NOT SHUT OFF

Time

Dry

Models

•

Timer

motor.

• Timer.

AUTO DRY MODELS

• Set

timer

for

time

dry.

Check

voltage

across

timer

motor.Iftimer

will

not

advance, replace

timer.

• When

valve

or

element

cycles off,

should

have

powertotimer

motor,

if

not,

proceed

with

next

check.

•

Dryer

cycling

on

hi-limit

thermostat.

Check

following.

•

Lint

filter

clean.

•

Restriction

in exhaust.

• Exhaust

hood

door

stuck.

• Exhaust

too

long.

•

Regulating

thermostat.

•

Customerisoverloading

dryer.

ELECTRONIC CONTROL MODELS

The

electronic

control

and

timer

are

usedtocomplete

the

drying

cycle

and

cool-down

period

for

these

dryer

models.

The

dryer

starts

out

with

the

drive

motor

running,

the

timer

motor

running,

the

heat

cycling

and

the

elec-

tronic

control

disabled.

As

the

timer

advancestoa

certain

pointinthe

cycle,

CAUTION

-------------------------,

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resist-

ance

readings.

ED/GD401 1090

SECTION

2.

ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-2

the

electronic

control

becomes

opera-

tional

as cam

number

two

opens. A

short

time

later,

the

timer

motorisde-

energized

when

cam

number

one

for

the

timer

motor

opens.

It is

during

this

stall

period

that

the

electronic

control

system uses

the

wet

clothes

falling

across

the

sensorinthe

drum

to

dis-

charge

the

capacitor

and

keep

the

dryer

running.

There

are

three

dryness

levels;

More

Dry,

Normal

Dry

and

Less Dry. These

dryness

levels

have been

accomplished

by

placing

resistors

on

the

electronic

control

(printed

circuit

board)

and

routing

the

bypass

wiring

accordingly.

The levelofresistanceinthe

circuit

,

determined

by

the

dryness

level

selected, affects

the

charge-up

rate

of

the

capacitor

and

accomplishes

the

desired

dryness

level.

As

the

clothes

get

dry,

the

capacitorisabletobuild

up a

chargetoa

point

where

the

neon

bulb

fires,

thus

triggering

the

gate on a

SCR. When

this

happens,acircuit

is

made

through

the

SCR,

energizing

the

coilinthe

relay. This

takes

onlyasplit

second

and

the

relay's

coilisthen

held

energized

through

a setofcontacts

in

the

relay.

Also,

when

the

coilinthe

relayisener-

gized,

the

timer

motorisactivated

through

another

setofcontactsinthe

relay. The

timer

advances

and

opens

cam

number

three

for

the

heater

and

the

dryer

beginsatimer

controlled

CAUTION

cool-down

period.

The

amountofcool-

down

time

will

depend

upon

the

cycle

selected:

Regular

- 6

minutes,

Permanent-Press

- 13

minutes

and

Permanent-Press

with

Press

Care

- 33

minutes.

NOTE:

These

times

are

approximate.

The

timer

then

advances

to

where

cam

number

1A opens,

de-

energizing

the

drive

motor

and

the

cycle

ends.

TROUBLESHOOTING

When

the

dryer

does

not

go

into

cool-

down

and

shut

off with

dry

clothes,

you

needtoknow

whether

you

have a

control

problem

orasensor

problem.

Troubleshooting

the

electronic

control

is

made

easierifwe

break

the

circuit

down

into

parts. We can

separate

the

two

parts

by

disconnecting

the

W-BU

wireinthe

control

panel at

the

plastic

coupler.

The

upper

part

contains

the

electronic

control

assembly

which

con-

sistsofthe

edgeboard

connector

assembly,

printed

circuit

board

assembly

and

relay. The

lower

part

consistsofthe

sensor

assembly

located

on

the

tumbler

front

bulkhead.

Separating

the

two

areas

by

pulling

the

wires

apartatthe

coupler

will

show

where

the

problemislocated.Ifthe

dryerisstarted

without

any

clothes

in

the

drum

and

shuts

offinabout

20

minutes

without

the

sensor

circuit

hooked

up,

then

the

sensor

must

be

keeping

the

dryer

from

shutting

off.

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resist-

ance

readings.

ED/GD401 1090 SECTION

2.

ELECTRICAL - MECHANICAL TROUBLESHOOTING

2-3

NOTE:

This

amountoftimeisfor

Regular

Fabrics

onaLess

Dry

setting.

A

settingofNormal

Dry

or

More

Dry

will

add

more

time

before

the

dryer

shuts

off. If

the

dryer

does

not

shut

off,

then

the

problem

is in

the

electronic

control

assembly.

Sensor

Assembly

1.

Disconnect

power

supply.

2.

Remove

front

panel.

3.

Remove

wires

goingtothe

sensor

bars.

4.

Check

with

ohmmeter

to

make

sure

there

is NO

continuity

across

the

sensor

bars. If

you

have

continuity

across

the

sensor

bars

the

capacitor

cannot

buildacharge,itwill

contin-

ually

bleed

off.

CAUTION

Always

disconnect

power

supply

before

making

continuity

or

resistance

checks.

5.

Checktomake

sure

the

sensor

bar

(the

one

not

connected

to

cabinet

ground)isnot

shorted

to

cabinet

ground.Ifthis

sensor

bar

has

a

leakage

pathtocabinet

ground,

the

capacitor

cannot

buildacllarge

and

will

continually

bleed

off. Use

ohmmeter

to

~heck

from

sensor

bar

to

cabinet

ground.

Electronic

Control

Assembly

If

dryer

does

not

go

into

cool-down

and

shut

off

with

the

sensor

disconnected

the

problem

isinthe

electronic

control

assembly.

While

the

dryerisrunning,

observe

the

neon

bulb

on

the

electronic

control

(printed

circuit

board).

When

the

capacitor

reaches

approximately

72

volts,

the

neon

bulb

"fires"

(flashes),

the

SCR

conducts,

the

relay

coil

is

energized

and

the

contactsinthe

relay

close.

If

neon

bulb

"FIRES"

but

timer

does

not

advance

(timer

motorisnot

ener-

gized):

1.

Check

relay

coil

for

continuity

or

resistance.
A.

Disconnect

power

supply.

B.

Remove

BK

and

BR

wires

from

relay

(refertoelectrical

wiring

diagram).
C.

Attach

meter

leads

across

these

terminals

and

complete

check.

If

checking

resistance,

you

should

see

about

2200

ohmsofresistance.

No

continuity,

replace

relay.

2.

Check

continuity

across

contacts

O-BKtoRDinrelay.

When

closed,

this

setofcontacts

is usedtokeep

the

coil

energized.

A.

Disconnect

power

supply.

B.

Remove

wires

O-BK

and

RD

from

relay.

CAUTION

--------------------------,

Always

disconnect

po~er

supply

before

making

any

continuity

checks

or

resistance

readings.

ED/GD401 1090

SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-4

C.

Remove

BK

wire

from

buzzer.

D.

Attach

motor

test

cordtothe

BK

wire

(removed

from

buzzer)

and

to

the

O-BK

wire

(removed

from

relay).

E.

Plug

motor

test

cord

into

outlet

(coilinrelay

should

now

be

ener-

gized).

F.

Check

for

continuity

from

ter-

minal

RD on

relaytoterminal

O-BK

on relay. No

continuity,

replace

relay.

CAUTION SHOULD

BE

EXERCISED

WHENEVER WORKING AROUND

LIVE VOLTAGE.

3.

Check

continuity

across

contacts

W-BKtoRDinrelay. When

closed,

this

setofcontactsisusedtoener-

gize

the

timer

motor

by

bringing

the

neutral

sideofthe

power

supply

through

the

relay,tothe

timer

motor.

A.

Disconnect

power

supply.

B.

Remove

wires

W-BK,

O-BK

and

RD

from

relay.

C.

Remove

BK

wire

from

buzzer.

D.

Attach

motor

test

cord

to

the

BK

wire

(removed

from

buzzer)

and

to

the

O-BK

wire

(removed

from

relay).

E.

Plug

motor

test

cord

into

outlet

(coilinrelay

should

now

be

ener-

gized).

\"-

CAUTION

F.

Check

for

continuity

from

ter-

minal

RD on

relaytoterminal

W-BK

on relay. No

continuity,

replace

relay.

4.

Replace

electronic

control

(printed

circuit

board).

If

neon

bulb

does

not

"FIRE":

1.

Check

capacitor.

A.

Disconnect

power

supply.

B.

Remove

electronic

control

(printed

circuit

board).

C. Set

ohmmetertoan

ohm

scale,

such as Rx100.
D.

Place

meter

leads

into

openings

in

the

edgeboard

connector

where

capacitor

leads

terminate.

First,

make

sure

you

have

discharged

the

capacitor

by

shorting

the

leads. Use

a

pieceofinsulated

wire

with

the

ends

stripped.

E.

Needle

should

deflecttoone

side

and

then

slowly

drop

backtozero.

F.

Failuretodeflect

the

needle

would

indicate

an

open

capacitor.

Failureofthe

needletodrop

back

would

indicateashorted

capacitor.

Replace

edgeboard

connector

assembly.

2. Replace

electronic

control

(printed

circuit

board).

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resist-

ance

readings.

ED/GD401 1090 SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-5

MISCELLANEOUS

Dryer

noisy.

•

Thumping

sound.

Check

for

loose

drum

baffle.

•

Thumping

sound.

Rear

drum

roller(s)

worn

or

misaligned.

•

Thumping

sound.

Check

drum

for

rough

spots.

• Ticking

sound.

Loose

wire

hitting

cabinet

or

other

component.

• Ticking

sound.

Check

for

an

object

caught in

the

blower.

•

Scraping

sound.

Frontorrear

bulkhead felt seal

outofposition.

•

Scraping

sound.

Teflon

bearings

mountedtothe

front

bulkhead

worn.

• Popping

or

squealing

sound.

Check

for

a sticky

beltorfrayed

belt.

Buzzer

will

not

buzzatendofcycle.

(Auto

Dry

Models)

•

Be

sure

all

wires

are

connected

and

wired

correctly

on

the

timer,

buzzer

and

drive

motor.

• Buzzer.

•

Motor

centrifugal

switch

sticking

in

run

position.

Buzzer

stays

on

too

longorgoes

off

too

quickly.

(Auto

Dry

Models)

•

Lengthoftime

the

buzzer

stays on is

dependent

upon

the

timeittakes

the

motor

to

slow

down,

allowing

the

motor

switch to reset. The

normal

time

incrementisbetween 2

and

3

seconds.

Buzzer

will

not

buzz

during

Press

Care

Setting.

• With

dial

set on

auto

dry

permanent

press and

the

press

care

"on"

button

depressed,

the

buzzer

will

sound

at

the

endofthe

normal

14

minute

cool-

down.

After

this,

the

dryer

will

con-

tinuetotumble

clothes in cool

air

for

24

minutes.Ifbuzzer

does

not

sound,

proceed

on.

•

Buzzer

signal

on.

•

Miswired

press

care

switchortimer.

• Buzzer.

•

Timer.

Buzzer

will

not

periodically

buzz

during

permanent

press

cool

down.

• Timer.

CAUTION

---------------~---------,

Always

disconnect

power

supply

before

making

any

continuity

checksorresist-

ance

readings.

ED/GD401 1090

SECTION 2. ELECTRICAL -

MECHANICAL

TROUBLESHOOTING 2-6

MICROPROCESSOR BOARD
CONTROL MODELS

The

microprocessor

board

receives

input

information

from

the

various

com-

ponents

involved

with

the

operation

of

the

dryer;

such as

the

dryness

sensor

and

the

thermistor.

It uses

this

infor-

mationtodetermine

the

necessary

control

for

the

completion

of

the

cycle.

One

of

the

waysitaccomplishes

this

is

through

the

useofcontrol

relays.

A

control

relay

(S.P.S.T.) is placedinthe

motor

circuit

for

both

the

gas

and

elec-

tric

dryer.

Another

relay

(S.P.S.T.) is

placed

in

the

heat

circuit

for

the

electric

dryer

only.

With

these

relays

the

microprocessor

board

is capable of

usingalow

voltage

circuittocontrol

a

high

voltage

circuit.

We can call

these

two

circuits

the

control

circuit

and

the

controlled

circuit.

NOTE: The

control

for

the

gas

dryer's

gas

valve

circuit

is

different

andiscovered

later.

The

control

circuit

for

the

drive

motor

consistsofthe

microprocessor

board

and

the

Motor

Relay's

coil. The

con-

trolled

circuit

for

the

drive

motor

con-

sists

of

the

Motor

Relay's

switch

contacts,

thermal

fuse

and

cut-off

drive

,

motor

and

door

switch. The

micro-

processor

board

starts

the

drive

motor

by

sending

24 VDCtothe

Motor

Relay's

coil. When

energized,

the

coil

creates a

magnetic

field

that

closes

the

CAUTION

switch

contactsinthe

relay

and

pro-

vides

a path

for

voltage

to

the

motor.

When

the

microprocessor

board

deter-

minesitneedstostop

the

motor,

it

removes

the

24 VDCtothe

relay's

coil.

The

switch

returnstoits

normally

open

position

and

the

path

for

voltagetothe

motorisopened.

The

control

circuit

and

controlled

circuit

for

the

heating

element

on

the

electric

dryer

operate

on

the

same

principle

as

the

motor

relay's

circuits.

When

the

microprocessor

board

wantstoener-

gize

the

heating

elementitsends

24

VDC to

the

coilinthe

Heater

Relay

and

a path

for

voltageiscompleted

through

the

switch contactstothe

heating

element.

When

the

24 VDC

are

removed

from

the

coil

the

switch

con-

tacts

open

and

the

path

for

voltage

to

the

heating

elementisopened.

TROUBLESHOOTING

When

trying

to

determine

what

is

causing

the

problem

(drive

motor

will

not

run

or

heating

element

will

not

come

on),

separate

the

two

circuits

to

isolate

the

problem

area. Start

with

the

control

circuit

(it hastofunction

before

the

controlled

circuit

will

work).

Deter-

mine

what is

involvedinthis

circuit

and

proceedtocheck

the

components.

If

these

components

are

foundtobe

func-

tioning

correctly,

focus

on

the

con-

trolled

circuit.

Determine

what

is

involved

and

proceedinchecking

the

components.

Always

disconnect

power

supply

before

making

any

continuity

checksorresist-

ance

readings.

ED/GD401 1090

SECTION

2.

ELECTRICAL -

MECHANICAL

TROUBLESHOOTING 2-7

CONTROL

CIRCUIT

Drive

motor

will

not

run

(gas

and

elec-

tric):

1.

Disconnect

the

power

supply.

CAUTION

Always

disconnect

power

supply

before

making

continuity

or

resistance checks.

2.

Make

continuity

check

or

resistance

check on

Motor

Relay's

coil.

A.

Remove

wire

connectors

O-BK

and W-BU on

the

Motor

Relay.

B. Attach

meter

leads

across

termi-

nals

O-BK

and W-BU. You

should

see

about

470

ohmsofresistance

if

checking resistance.

C.

No

continuity,

replace

the

relay.

CAUTION:

Use

extreme

care

when

checking

voltage.

3.

Check

for

24 VDC

across

the coil on

the

Motor

Relay. To check

for

this

voltage

the

dryer

hastobe in a

program.
A. Place

meter

leads

across

wire

connectors

O-BK

and W-8U on

the

Motor

Relay (the

relay

has

two

sizes

of

terminals;

the

smaller

terminals

for

DC

and the

larger

terminals

for

AC).

\.

CAUTION

Note:

You

are

checking

DC

voltage,

set and use

meter

accordingly.

B. No voltage, suspect

the

micro-

processor,

transformer,

edgeboard

connector

AA

or

power

supply.

CONTROLLED

CIRCUIT

1.

Check

for

continuity

across

the

Motor

Relay's

switch

contacts

with

the

coil

energized.

A. Disconnect

power

supply.

B.

Remove

wire

connectors

R-BK

and

GY.

C. Attach

the

meter's

leads

across

terminals

R-BK

and

GY.

D. Connect

power

supply_

CAUTION SHOULD BE EXERCISED

WHENEVER WORKING AROUND

LIVE VOLTAGE.

E.

No

continuity

across

switch

con-

tacts

with

coil

energized,

replace

the

relay.

2.

Another

methodofchecking.

A.

Disconnect

the

power

supply.

B. Remove

and

connect

wires

R-BK

and

GY

together

(the

wires

connec-

tors

are

insulated,ajumper

will

have to be used).

_

......

,~

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resistance

readings.

ED/GD401 1090

SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-8

C.

Connect

power

supply.

D.

If

motor

runs,

the

switchinthe

relay

has failed,

replace

relay.

3.

Check

drive

motor.

Refer

to Elec-

trical

Test

Equipment

section

for

drive

motor

test.

,-

CAUTION

----------,

I

Always

disconnect

power

supply

before

making

continuity

or

resistance checks.

4.

Make

continuity

checks on

thermal

fuse

and

cut-off. No

continuity,

replace.

5.

Make

continuity

check on

door

switch

with

door

closed. No

conti-

nuity, replace.

CONTROL CIRCUIT

No

heat

(electric

dryer):

1.

Check

for

continuity

or

resistance

across

the coil on the

Heater

Relay.

A.

Disconnect

power

supply.

B. Place

meter

leads

across

YL

and

W-BU.

C.

Should

see

about

310

ohms

if

reading

resistance. No

continuity,

replace relay.

\ CAUTION

CAUTION:

Use

extreme

care

when

checking

voltage.

2.

Check 24

DC

voltage

to relay.

A. Place

meter

leads

across

wire

connectors

YL

and

W-BU.

NOTE: Checking DC

voltage,

set

and use

meter

accordingly.

B. Make

voltage

check. No

voltage,

suspect

microprocessor

board,

transformer,

edgeboard

connector

AA

or

power

supply.

CONTROLLED CIRCUIT

1.

Check

for

continuity

across

switch

contacts in

Heater

Relay.

A. Disconnect

power

supply.

B.

Remove

wire

connectors

BK

and

BK

from

relay.

C.

Place

meter

leads

across

termi-

nals

BK

and

BK

on relay.

D.

Connect

power

supply.

CAUTION SHOULD

BE

EXERCISED
WHEN WORKING AROUND LIVE
VOLTAGE.

E.

Make

continuity

check. No

conti-

nuity, replace relay.

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resistance readings.

EDIG

D401

1090

SECTION

2.

ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-9

2.

Another

method

for

testingisto

bypass

the

Heater

Relay.

A.

Disconnect

power

supply.

B.

Remove

wire

connectors

BK

and

BK

(wire

connectors

are

insulated,

jumper

wire

will

havetobe used).

C. Connect

power

supply.

If

heating

elementisenergized,

relay

has failed,

replace

relay.

CAUTION

Always

disconnect

power

supply

before

making

continuity

or

resistance checks.

3. Check

for

continuity

across

160

0

Limit

Thermostat

(when cool). No

continUity, replace

thermostat.

4. Check

for

continuity

across

Hi-Limit

Thermostat. No

continuity,

replace

thermostat.

Note: When checking

continuity

or

resistance

always

isolate

what

you

wanttocheck.

5.

Check

for

continuity

or

resistance

across

the

Heater

(heating element).

Should

see

about

11

ohms

(240

volt

element),

about8ohms

(208

volt

element)

when

checking resistance.

No

continuity,

replace heating

element.

6. Check

continuity

across

centrifugal

$witch

on

motor

switch.

A. Remove

wire

connectors

BU

and

BK

from

motor

switch.

B. Attach

meter

leads

across

termi-

nals SU and

BK

on switch.

C.

Use

small

screwdriver

to

move

centrifugal

lever

on

the

drive

motor

to the

"run"

position.

D.

Check

for

continuity

across

ter-

minals

BU

and

BK, no

continuity,

replace

motor

switch.

HEAT

CIRCUIT

FOR THE

GAS

DRYER

No

heater

control

relay

is placed

in

series

with

the

gas

valve

on

the

gas

dryer.

The

control

for

this

circuit

is

done

on

the

microprocessor

board

itself. The L1

sideofthe

power

supply

is

routedtothe

microprocessor

board

through

edgeboard

connector

SB

(refer

to schematic). The

microprocessor

board

determines

when

the

gas

valve

should

be

energized

and

relays

L1

back

through

edgeboard

connector

BB

and

completes

the

circuit

for

the

gas

valve.

Will

not

heat

(gas

dryer):

CAUTION

-----------,

Always

disconnect

power

supply

before

making

continuity

or

resist-

ance checks.

1.

Check

continuity

across

1600Limit

Thermostat

(when cool). No

conti-

nuity,

replace.

CAUTION

-----------------------.,

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resistance

readings.

ED/GD401 1090 SECTION

2.

ELECTRICAL - MECHANICAL TROUBLESHOOTING 2·10

2.

Check

continuity

across

Hi-Limit

Thermostat. No

continuity,

replace.

3.

Check

continuity

across

centrifugal

switch on

motor

switch.

A. Remove

wire

connectors

BU

and

BK

from

motor

switch.

B. Attach

meter

leads

across

BU

and

BK

terminals

on the switch.

C.

Use

small

screwdriver

to

move

the

centrifugal

lever

on

the

drive

motorto"run"

position.

D.

Check

for

continuity

across

BU

and

BK, no

continuity,

replace

motor

switch.

4.

Check

gas

valve.

Refer to section

covering

gas valve.

5. Check

for

the

L1

sideofthe

voltage

to the gas

valve.

The L1

side

is con-

trolled

by

the

microprocessor

board.

Wiringiscompleted

through

edgeboard

connector

B (pin 3 and

pin 1).

CAUTION:

Use

extreme

care

when

checking

voltage.

A.

Dryer

must

be in a

program

that

is

calling

for

heat.

B. Use

voltmeter

to

check

from

ter-

minal

BK

on 1600Limit

Thermostat

to cabinet

ground

(be

sure

polarity

is correct)

with

dryer

calling

for

heat.
C.

No

voltage

(120 VAC), suspect

microprocessor,

edgeboard

con-

\

nector

BB,

transformer

or

power

supply.

DRYER (MICROPROCESSOR

BOARD CONTROL)

A

microprocessor

board

provides

the

control

for

this

dryer.Itaccomplishes

this

control

with

several

components.

The

components

involved

are

the

trans-

former,

thermistor,

control

relays,

dryness

sensor

and

lint

filter

switch.

To

start

the

dryer

the

user

selects the

desired

program

by

pressing

the

indi-

cated pad on

the

menu. There

are

17

of

these pads

from

which

the

user

can

select the

programs

and

options

for

the

dryer.

Behind

the

pads

are

actuators

(push rods)

that

activate

switches

on

the

microprocessor

boardtoinitiate

the

program

and

options.

NOTE:

An

option

can be selected

only

after

a

program

has been selected.

No test

boardisavailabletocheck

microprocessors.

Therefore,

all

other

componentsinthis

section

should

be

checked first. If no

problemisfound,

replace

microprocessor.

TRANSFORMER

A

step-down

transformer,

consisting

of

a

primary

winding

and

three

secondary

windings,isused to

provide

the

neces-

sary

voltagestothe

microprocessor

board.

The

primary

sideofthe

trans-

former

receives

the

voltage

(120

volts

measure

across

L1 and Neutral). The

transformer

then

steps

this

voltage

down

through

the

secondary

windings

into the

voltages

neededtopower

the

CAUTION

-------------------------,

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resist-

ance

readings.

EDIGD401

1090

SECTION 2.

ELECTRICAL-MECHANICAL

TROUBLESHOOTING

2-11

microprocessor

board

and

provide

the

voltages

that

the

microprocessor

board

usestocontrol

or

operate

the

various

functionsofthe

dryer.

The

output

volt-

ages on

the

secondary

side

are

20.7
VAC, 22.6 VAC and 3.8 VAC (this
winding

has a

center

tap

that

provides

1.9 VAC

when

measured

from

the

center

taptoeitherofthe

outside

leads).

VARISTOR

The

varistor

is a

semiconductor

device

(solid state) connected

across

the

primary

input

terminals

on

the

trans-

former.

Its

function

is to

protect

the

microprocessor

board

against

voltage
surgesorspikes. The resistanceofthe
varistor

decreases

as

the

voltage

across it increases. If

the

voltage

exceeds

the

"threshold"

of

the

varistor,

its resistance

will

decrease

rapidly

to

the

pointofprovidingashort

circuit

across

the

primary

terminals.

This

may

trip

circuit

breaker

or

open fuse

or

destroy

varistor.

If

varistor

is

damaged,

replace

transformer.

TROUBLESHOOTING

Because

the

transformer

provides

the

powertothe

microprocessor

board

it

should

be checked

firstifit

appears

the

microprocessor

board

or

anyofthe

componentsinits

circuitryisnot

func-

CAUTION

tioning

properly.

In checkingortrou-

bleshooting

the

transformeritis

important

to

remember

the

transformer

only

transforms

or

changes

the

voltage

to

different

values. It

does

not

rectify

the

voltagetoDC,

thatisdone

on

the

microprocessor

board.,

NOTE:

There

are

two

sizesofspade

terminals

used

on

the

transformer.

The

two

large

spade

term!nals

are

used

for

the

primary

winding

and

the

smaller

spade

terminals

are

used

for

the

secondary

windings.

NO

POWER

Primary

Side:

1.

Is

dryer

plugged

into

power

supply?

2.

Is

voltage

(120 VAC)

present

at

primary

side?

CAUTION:

Use

extreme

care

when

checking

voltage.

3.

Check

for

voltage

(120 VAC).

A. Attach

meter

leadstowire

con-

nectors

R-BK

and

W-BR.

B. Make

voltage

check,

should

see

120 VAC (voltage

value

may

vary),

if

not,

check

power

supply.

4.

Disconnect

power.

5.

Remove

wire

connectors

R-BK

and

W-BR

from

primary

sideoftrans-

former.

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resistance

readings.

ED/GD401 1090

SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-12

6.

Check

for

continuity

across

these

terminals.

No

continuity,

replace

transformer.Ifchecking

resistance

there

should

be

about

42

ohms

across

primary

leads.

Secondary

Side:

CAUTION

----------,

Always

disconnect

power

supply

before

making

continuity

or

resist-

ance checks.

1.

Check

for

continuity

on

secondary

windings.

NOTE: The resistance

valuesofthe

secondary

windings

are

small and

may

not

be

detectable

unless

usingadigital

meter. These

are

approximate

values: Y-BK to

Y-BK 2 ohms, W-OR

to

W-OR 1

ohm

and

PK to PK 5 ohms.

2. Remove

wire

connectors

Y-BK and

Y-BK

from

secondary

winding.

3.

Check

for

continuity

across

termi-

nals on

this

secondary

winding.

No

continuity,

replace

transformer.

4.

Remove

wire

connectors

W-OR, BU

and W-OR

from

secondary

winding.

5.

Check

for

continuity

from

BU to both

W-OR

terminals.

No

continuity,

replace

transformer.

CAUTION

6.

Remove

wire

connectors

PK and PK

from

secondary

winding.

7.

Check

for

continuity

across

termi-

nals on

this

secondary

winding.

No

continuity,

replace

transformer.

Voltage

checks

on

the

secondary

windings.

CAUTION:

Use

extreme

care

when

checking

voltage.

1.

Attach

meter

leads

across

terminals

Y-BK and Y-BK on

secondary

winding.

Should

see 20.7 VAC, no

voltage

replace

transformer

if

primary

and

power

supply

check

okay.

2.

Disconnect

power

supply.

A. Remove

wire

connectors

W-OR,

BU

and

W-OR

from

secondary

winding.
B. Attach

meter

leads

across

termi-

nals W-OR and W-OR on

secondary

winding.
C.

Connect

power

supply.

Make

voltage

check.

Should

see 3.8 VAC

across

W-OR

and

W-OR (1.9 VAC

from

BUtoeitherofthe

W-OR

termi-

nals), no voltage, replace

trans-

formerifprimary

and

power

supply

check okay.

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resistance

readings.

ED/GD401 1090

SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-13

3. Attach

meter

leads

across

terminals

PK

and

PK. Make

voltage

check.

Should

see 22.6 VAC, no

voltage,

replace

transformerifprimary

"and

power

supply

check okay.

Note: These

voltages

may

vary

slightly.

FAULT CODE

The

microprocessor

board

has

the

capabilitytodetect

certain

problems

associated

with

the

operationofthe

dryer.

When

the

microprocessor

board

detects

oneofthese

problemsitdis-

plays a

fault

code in

the

dryer's

display

window.

The fault

codeisdisplayed

as

a

letterFfollowed

byanumber

that

corresponds

to

the

problem.

The

microprocessor

board

makes

the

dryer

inoperative

for

all but oneofthe

fault

codes. Fault code F-9 is

the

exception,

it

does

not

appearinthe

display

(unless a certain

procedureisfollowed)

and

does

not

make

the

dryer

inopera-

tive.

FAULT CODES

F-1

•

Door

circuit-board

component

failure.

•

Dryer

inoperative.

• Can

appear

anytime.

• Replace

microprocessor

board.

F-2

•

Low

temperature

sensed (40°

below

zero).

•

Dryer

inoperative.

• Can

appear

after

the

first

1 1/2

minutesofa cycle

calling

for

heat.

• Open

in

thermistor

circuit.

• Room

temperature

(unlikely).

F-3

•

High

temperature

sensed (above

200°F.).

•

Dryer

inoperative.

• Can

occur

anytimeacycleiscalling

for

heat.

•

Check

venting.

•

Short

circuitinthermistor

circuit.

CAUTION

-------------------------,

Always

disconnect

power

supply

before

making

any

continuity

checksorresist-

ance

readings.

ED/GD401 1090 SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-14

F-4

•

Motor

transistor

on

board

failure.

•

Dryer

inoperative.

• Can

occur

only

on

start

up.

• Replace

microprocessor

board.

F-9

•

Low

voltage

(below

about

95

volts).

•

Dryer

will

operate

and

fault

code

is

not

displayed.

• Can

occur

anytime

but

will

only

show

up

and

be

cleared

on

request.

• To

check

for

F-9,

press

OFF pad

and

while

holding

OFF

pad,

press

the

PAUSE/RESUME

pad

and

hold

for

2

seconds.

This

sequence

will

show

all

display

segments

and

then

display

a

F-9

if

low

voltage

has

occurred

since

last check.

•

Check

electrical

circuit

that

dryer

is

on.

CLEARING THE FAULT

•

Disconnect

power

supply.

•

Correct

problem.

•

Restore

power.

CAUTION

------------------------,

Always

disconnect

power

supply

before

making

any

continuity

checks

or

resist-

ance

readings.

ED/GD401 1090

SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-15

\.

ED/GD401 1090

SECTION2.ELECTRICAL - MECHANICAL TROUBLESHOOTING 2-16

SECTION

3.

SERVICE PROCEDURES

ACCESS TO CONTROL PANEL

COMPONENTS

ALL

MODELS

1.

Remove

inner

screws.

2.

Tip

control

panel

assembly

forward.

Note: When

reinstalling,

engage

tabs on console in openings

of

backup plate.

ED/GD401 1090

CONTROL PANEL ASSEMBLY
COMPONENTS

TYPES OF CONTROLS

There

are

four

basic

typesofcontrols

used to

determine

the

operating

time

of

May

tag

dryers;

they

are

Timer,

Auto-

matic

Control, Electronic Control and

Microprocessor.

Timer

Control

These

models

utilize

an electrical

timer

which

the

user

setstothe

number

of

minutes

recommendedinthe

operating

instructionsoras

experience

indicates

necessary.

The

timer

knob and

dial

are

attached to

the

timer

shaft.

At

the

other

endofthe

shaft is a cam

which

controls

both the

drying

time

and

the

cool-down.

With the

timer

set at 20 minutes as

shown in the

drawing

the

circuit

is com-

pleted

through

the

timertothe

drive

motor

and

heater

circuit.

SECTION3.SERVICE PROCEDURES

3-1

HEATER
MOTOR
POWER

~

~

/

./

./

coo,

GOWN

\

COOL

\

GOWN

\

As

the

timer

advances

towards

the

off

position,

the

switch

arm

drops

into

step

one. This breaks

the

circuittothe

heater. Since

the

circuitisstill

made

to

the

drive

motor,

the

tumbler

will

con-

tinue

to rotate

and

the

air

will

continue

to

be

pulled

through

the

tumbler

cooling

the

load

before

the

dryer

shuts

off.

HEATER

MOTOR
POWER

LJ

~

When an

air

fluff

selection is

made

,

only

the

circuittothe

drive

motor

and

timer

motor

is made.

HEATER
MOTOR

LJ

POWER

Auto

Dry

Models

The

lengthofthe

cool-down

period

depetlds

upon

the

cycle

selection. Per-

manent

Press has an

extended

cool-

downtolower

the

temperatureofthe

garments

so

astominimize

wrinkling

which

would

result

from

the

warm

gar-

ments

coming

to rest at

the

bottom

of

the

tumbler.

ED/GD401 1090

The auto

dry

models

operate

on

the

principle

that

as

long

as

the

load

being

driedisdamp,

and

rapid

evaporation

is

taking

place,

the

temperatureofthe

dryer

and

exhaust

air

will

remain

rela-

tively

low. It

also

follows

thatasthe

load

gives

up

moisture

and

the

rate

of

evaporation

slows

down,

less

BTU's

or

heat is usedinevaporation

and

the

temperatureofthe

load

and

exhaust

air

SECTION3.SERVICE PROCEDURES 3-2

increases. With

thisinmind,

let's

look

at

the

circuitry.

With

the

timer

setinthis

position,

the

circuits

are

completedtothe

heat

source

and

drive

motor.

POWER

Note: The switch

controlling

the

timer

motor

is open.

TO HEAT

CYCLING

THERMOSTAT

MOTOR

TO TIMER

WITH CYCLING THERMOSTAT

CALLING

FOR

HEAT

(NORMAL)

At

the

beginningofthe

cycle

the

load is

damp,

the

heat

inputisused

up in

evaporationofthe

moisture

and

there

is

little

increaseinthe

air

temperature.

As

the

load becomes

drier,

less heat is

used up

in

evaporation

and

the

temper-

atureofthe

load and exhaust

air

starts

to

rise. The exhaust

airisbeing

pushed

over

the

regulating

thermostat

and

as

the

temperatureofthe

exhaust

air

rises so

does

thatofthe

thermostat.

Once

the

thermostat

reaches a

temper-

atureofapproximately

1400F

the

circuit

is

brokentothe

heat

source

andatthe

same

timeiscompletedtothe

timer

motor.

DRIVE

MOTOR

HEAT

SOURCE

TIMER

MOTOR

l'

TIMER

SET

HERE

When

the

timer

is settoa

degree

of

dryness,

the

circuitiscompletedtothe

heat source

and

the

drive

motor.

The

difference between

this

control

and a

,

standard

timer

operated

dryeristhe

fact

that

the

timer

motorisnot

initially

in

the

circuit.

To see

how

the

control

works,

let's

assume

that

the

loadtobe

dried

is a

normal

load with

the

gar-

mentsofsomewhat

uniform

weight,

the

auto

regular

setting is selected and

the

dial

set on the

middle

mark

between

"more

dry"

and

"less

dry".

As

indicatedinthe

timer

schematic

below,

the

maximum

timer

controlled

drying

time

on

an

auto-dry

regular

setting is

approximately

31

minutes

plusafive"minute

cool-down.

Since we

set the

dialtothe

middle

mark

we have

set

the

timeratabout

the

mid

point

or

for

approximately

15

minutesoftimed

dry.

ED/GD401 1090

SECTION3.SERVICE PROCEDURES 3-3

POWER

CYCLING

THERMOSTAT

HAS

REACHED

TEMPERATURE

(OPEN)

At

this

point

the

unheated

airiscooling

the

load and

the

timer

motor

is

advancing

the

timer

towards

the

off

position.

In

this

example,

after

a totalofapproxi-

mately

13

minutesofheat off

time

the

timer

will

have

advanced

to

the

point

where

Cam 2 closes

the

timer

motor

switch whichinturn

advances

the

timer

outofthe

heat

portionofthe

cycle and

into

the

cool-down

period.

Each

time

the

thermostat

cycles

the

heat

periodisshorter

and

the

heat off

(timer

motor

on)

timeislonger.

will

take a

relatively

long

period

of

time.

By

the

same token,

the

moisture

content

and

the

evaporation

rate

taking

place

during

the

first

heat off

period

makesitshorter

than subsequent heat

off

periods.

CYCLING

THERMOSTAT

TO

HEAT

MOTOR

TO TIMER

As

the

temperatureofthe

tumbler,

the

items

being

dried

and

the

exhaust

air

decrease, so

does

the

temperature

of

the thermostat. When

the

thermostat

cools to a

temperatureofapproximately

1250F.

the

thermostat

returnstoits

normal

position

breaking

the

circuit

to

the

timer

motor

and

again

completing

the

circuittothe

heating

elementorgas

valve.

A selectionofthe

middle

mark

is a

good

starting

point. Experience

gained

from

drying

a few

loads

will

enable

the

operatortopickapoint,

either

more

or

less

dry,

which is

most

pleasing. Once

this

pointisdetermined,itcan be used

for

most

loads

as

the

automatic

control,

based

upon

time

and

temperature,

will

automatically

adjust

itselftothe

size

of

load.

Note: The

temperatures

quoted

are

the

operating

temperaturesofthe

thermo-

stat and

not

the

temperature

of

the

clothingorexhaust

air.

Becauseofits

mass,

the

thermostat

will

heat up and

cool

down

slower

than

the

air

temper-

ature.

Because

of

the

moisture

content and

the

evaporation

rate,

the

first

temper-

atur'e

rise

and

cyclingofthe

thermostat

\.

If

the

operatorisdryingapoorly

mixed

load;

bulky

items

such as cotton socks

along

with

lightweight

flat

items

it

would

be

desirable

to

move

the

dial

to

the

"more

dry"

so

that

more

time

is

availabletocondition

the

loadorto

allow

the

moisturetosurface on

the

bUlky items. This is

not

necessary

on

a

more

uniform

loadofeither

bulky

or

lightweight

items.

ED/GD401 1090 SECTION

3.

SERVICE PROCEDURES 3-4

TIMER

A

timer

is a

motor

driven

package

of

switches that establishes a sequence

of

operation.

To

Replace Timer:

1~\Pry

out

cap.

2. Remove

nut

and

dial.

3. See Access To

Control

Panel

Com-

ponents.

4.

Remove

timer

screws.

ED/GD401 1090

TIMER

MOTOR

1.

See Access To

Control

Panel Com-

ponents.

2. Remove

two

screws

securing

motor

to

timer.

Note: It

may

be necessarytoremove

timer.

SECTION 3. SERVICE PROCEDURES

3·5

TEMPERATURE

SWITCH

A switch that

allows

selectionoftem-

peratures.

1.

See Access To

Control

Panel

Com-

ponents.

2. Remove switch

from

back-up plate

by

removing

two

screws

holding

switch to back-up plate.

CONTROL

PANEL

1.

Remove

timer

dial.

2. See Access To

Control

Panel

Com-

ponents.

3. Remove end caps.

4.

Insert

a flat

bladed

screwdriver

between

the

top

portionofthe

control

panel

and

back-up plate

and

gently

pry

the

two

apart.

5.

Disengage notchesofcontrol

panel

from

slots in

bottomofback-up

plate.

ED/GD401 1090

SECTION

3.

SERVICE PROCEDURES

3-6

BUZZER

Many

model

dryers

incorporate

a

buzzer

which

signals

the

endofthe

cycle on all

dry

selections. The

buzzer

is

wiredinparallel

with

the

timer

con-

tacts

for

the

drive

motor.

1.

See Access To

Control

Panel

Com-

ponents.

2. Remove

buzzer

by

removing

one

screw

securing

mounting

bracket

to

back-up plate.

3. On

some

models

note the shaft

of

buzzer

and

corresponding

slot

in

pivot

armofslide

lever.

ADJUSTABLE

BUZZER -

ADJUSTABLE

SLIDE LEVER

The

lever

on

the

endofcycle signal can

be

adjusted

by

the

customer.

The

signal

control

lever

is raised

to

increase and

loweredtoreduce

or

eliminate

the

buzzer

tone.

1.

Remove buzzer. One

screw

secures

buzzertomounting

bracket.

2. Remove

slide

lever

with

pivot

arm.

Note

positionofpivot

arm,

slide

lever

and

retaining

plate

for

future

mounting

procedures.

Two screws

secure

mounting

plate

for

lever.

PUSH-TO-START SWITCH

1.

See Access To

Control

Panel

Com-

ponents.

,2.

Remove

two

screws

holding

switch

\ and

brackettoback-up plate.

ED/GD401 1090

AUTO-DRY

SWITCH

1.

See Access To

Control

Panel Com-

ponents.

2. Remove switch

by

taking

out

two

screws

holding

switch to back-up

plate.

PRESS CARE SWITCH

1.

See Access To

Control

Panel Com-

ponents.

2. Remove switch.

SECTION3.SERVICE PROCEDURES 3-1

ED/GD401

1090

SECTION3.SERVICE PROCEDURES 3·8

ELECTRONIC CONTROL MODELS

Asinthe

other

control

systems,

the

sole

purposeofthe

electronic

control

is

to

shut

the

dryer

offatthe

endofthe

drying

cycle. The

electronic

control

system

reactstomoistureinthe

clothes

to

keep

the

dryer

running

until

the

clothes

are

dry.

For

testing

and

electrical

operation,

see

Section

2.

CONTROL PANEL REMOVED

Electronic

Control

Models

The

electronic

control

assembly,incon-

junction

with

the

sensor

assembly,

is

used

for

determining

when

the

clothes

have

reached

the

selected

dryness

level.

This

assembly

consistsofthree

components:

edgeboard

connector

assembly,

relay

and

electronic

control

board

(printed

circuit

board). These

components

are

locatedinthe

left

hand

cornerofthe

control

console.

ED/GD401 1090

To

remove

the

electronic

control

assembly

components:

1.

Disconnect

the

power

supply.

2.

Remove

the

two

inside

screws

on

control

panel

and

tilt

panel

forward.

3. To

remove

the

electronic

control

board

(printed

circuit

board).

A.

Grasp

the

board

on

both

sides

with

thumb

and

fingers.

B. Pull

straight

back

while

twisting

the

board

back

and

forthina

side-

ways

motion.

Note

which

sideofthe

boardisfacing

up.

4. To

remove

relay:

A.

Disconnect

the

wires

going

to

the

relay.

B.

Remove

the

two

screws

securing

the

relaytothe

bracket.

5. To

remove

the

edgeboard

connector

assembly:

A.

Remove

the

two

screws

securing

the

assemblytothe

back-up

plate.

B.

Disconnect

the

remaining

wires

to

remove

assembly.

DRYNESS SWITCH

1.

Gain

accesstocontrol

panel.

2.

Remove

switch.

SECTION3.SERVICE PROCEDURES 3-9

MICROPROCESSOR BOARD CONTROL

The

microprocessor

board

receives

input

information

from

the

various

components

involved

with

the

operationofthe

dryer;

such as

the

dryness

sensor

and

the

thermistor.

It uses

this

information

to

determine

the

necessary

control

for

the

com-

pletionofthe

cycle.

CONTROL PANEL REMOVED -

Microprocessor

Models

To

remove

microprocessor

board:

1.

Disconnect

power

supply.

2. Remove

the

two

inside

screws on

control

panel and

tilt

panel

forward.

3. Disconnect

the

three

edgeboard

connectors

from

the

microprocessor

board.

4.

Remove

the

eight

nuts

securing

the

microprocessor

boardtothe

mounting

panel.

To

remove

mounting

panel

assembly:

Remove

the

four

nuts

securing

the

mounting

panel to

the

back-up plate.

ED/GD401 1090

SECTION 3. SERVICE PROCEDURES

3-10

ED/GD401 1090

SECTION 3. SERVICE PROCEDURES

3-11

To

remove

transformer:

1.

Disconnect

power

supply_

2. Remove

the

two

inside

screws on

control

panel

and

tilt

panel

forward.

3. Disconnect

the

wires

goingtothe

transformer.

4.

Remove

the

two

screws

securing

the

transformertothe

dryer

top

cover.

To

remove

motor

relay:

1.

Disconnect

power

supply.

2. Remove

the

two

inside

screws on

the

control

panel and

tilt

panel

forward.

3. Disconnect

the

wires

goingtothe

relay.

4.

Remove

the

two

screws

securing

the

relaytothe

dryer

top

cover.

To

remove

heater

relay

(Electronic

Dryer

Only):

1.

Disconnect

power

supply.

2.

Remove

the

two

inside

screws on

control

panel and

tilt

panel

forward.

3. Disconnect

the

wires

goingtothe

relay.

4.

Remove

the

two

screws

securing

the

relaytothe

dryer

top

cover.

\.

ED/GD401 1090

SECTION 3. SERVICE PROCEDURES

3-12

FRONT

PANEL

AND

COMPONENTS

\

DOOR HINGES

~~

~~

~,

FRONT

PANEL

~

~

SCREWS

INNER

DOOR

GAS

VALVE

ACCESS DOOR

GAS

MODELS

ONLY

OUTER

DOOR

ED/GD401 1090

SECTION 3. SERVICE PROCEDURES 3-13

FRONT PANEL REMOVAL

1.

Remove screws.

2.

Lift up on

front

panel and

swing

bottomofpanel away

from

dryer

to

disengage

topofpanel

from

dryer

top.

J

UFl'UP

SWING

OUT

3.

Front

panel

may

be set offtoone

side

orifnecessary,

the

door

switch

EO/GD401 1090

wires

may be

disconnected

and

the

front

panel

removed

completely

from

the

unit.

DOOR SEAL

1.

Open

door.

2. Grasp one end

and

pull

gasket

from

door.

3.

When

installing

the

door

gasket,

the

thicker

end fits

behind

the

tabs

on

the

door.

4. Install one endofthe

gasketatthe

bottomofthe

door

and

work

the

gasket

behind

each tab.

Note: It

may

be

necessarytocut

1/2"

from

one endofthe

replacement

gasket.

DOOR REMOVAL

1.

Open

door.

2.

Support

door

and

remove

four

screws (two

from

upper

hinge

and

two

from

lower

hinge)

which

hold

the

door.

SECTION 3. SERVICE PROCEDURES 3-14

3. Remove

door.

TO DISASSEMBLE DOOR

1.

Remove

door

hinge

screws

from

door.

2. Remove

two

screws on

edgeofdoor

opposite

hinges

and

two

screws

from

bottomofdoor.

3. Remove

screw

holding

door

handle

and separate

door

halves.

FLUSH MOUNTED HANDLE

1.

Remove

cross

head

screw

from

upper

inside

door

panel

securing

handletodoor.

2. Pull

handle

out.

ED/GD401 1090

DOOR STRIKE

1.

Remove

cross

head

screw

on

right

edge of

door

panel.

2. Disengage

clip

and

strike

from

panel.

DOOR HINGES

1.

Remove

door

from

dryer.

2. Remove

front

panel because each

door

hhlge

is backed

up

by

a

retaining

clip

which

will

fall

from

place when

the

hinge

is removed.

3. Remove

two

screws

holding

each

hingetothe

front

panel.

4.

Remove

two

screws

holding

hinges

to

door

panel.

DOOR SWITCH

1.

Remove

front

panel.

2. Squeeze

the

expanded

endofthe

latch

together

and

remove

latch.

FRONT PANEL SEAL

To

maintain

the

proper

air

flow

pattern

and

therefore

the

desired

drying

results,

the

seal

which

fits

around

the

door

openinginthe

inner

front

panel

must

beinplace

andingood

shape.

1.

Remove

front

panel.

2. Remove

old

seal.

3. Install

replacement

seal

by

rolling

seal

over

the

front

panel

lip.

SECTION 3. SERVICE PROCEDURES 3-15

\.

FRONT PANEL

ED/GD401 1090

SECTION

3.

SERVICE PROCEDURES 3·16

TUMBLER AND RELATED COMPONENTS

TUMBLER

REAR

OUTLET

~

FRONT

BEARING

~~~

/

~

AND PAD

SENSOR

INTERIOR

LIGHT

(120V - 7 Watt)

The

drum

lightisat

the

upper

center

of

the

tumbler

opening.

It is

wired

in

series

with

the

door

switch so that

the

light

comes on,

illuminating

the

drum,

only

when

the

door

is open.

L~GHT

REPLACEMENT

1.

Open

door.

2.

Unscrew

bulb.

ED/GD401 1090

LIGHT

RECEPTACLE

1.

Remove screws

from

Front

Panel

and

swing

panel aside.

2. Remove

wires.

3. Remove

nut

from

left

hand

mounting

tab.

4.

Pull

up

on receptacletodisengage

from

tumbler

front.

SECTION 3. SERVICE PROCEDURES 3-17

DRYNESS SENSOR

To

remove

the

dryness

sensor:

1.

Disconnect

power

supply.

2. Remove the

front

panel.

3. Remove

the

wires

goingtothe

dryness

sensor,

W-BK

and W-BK.

4.

Remove

the

two

screws

securing

the

dryness

sensortothe

bulkhead.

To check

the

dryness

sensor:

CAUTION

-----------,

Always

disconnect

power

supply

before

making

continuity

or

resist-

ance checks.

1.

Disconnect

power

supply.

2. Remove both

wires

goingtothe

sensor

bars.

3. Check

for

continuity

across

the

sensors. Attach

meter

across

the

terminal

on each sensor. If

you

have

continuity,

replace

dryness

sensor.

4. Check

for

circuittoground

from

either

sensor

bar. Replace both

wire

connectors

on

the

spade

termi-

nals. Place

one

meter

lead on

the

sensor

bar

inside

the

drum

and

place

the

other

meter

lead on

cabinet

ground.Ifyou

have conti-

nuity, check

to

make

sure

the

wire

connectors

are

not

making

contact

with

the

front

bulkhead. The

insu-

lated

wire

connector

goes on

the

terminal

closesttothe

bulkhead.

ED/GD401 1090

TUMBLER FRONT

The

tumbler

front

holds

the

frontofthe

tumbler

in the

correct

position

and

pro-

vides

the

bearing

surfaces

for

the

tumblertoride

on.

1.

Remove

front

panel.

2. Remove

four

screws

holding

tumbler

front

to cabinet.

3. Remove

screw

holding

ground

wire

to cabinet.

4.

Disconnect

wires

from

retainer.

5.

Pull

tumbler

front

out

and

away

from

tumbler.

Note: Two tabs on each

sideofthe

tumbler

front

fit

into

notchesinthe

front

of

the

cabinet. These

must

be

disen-

gagedtoremove

tumbler

front.

LINT

FILTER SWITCH

The

lint

filter

switch

producesa"Check

Filter"

warninginthe

dryer's

display

if

the

lint

filter

is not

removed

and

replaced

after

the

dryer

goes into

cool-

downatthe

endofa cycleorat

the

end

of

Air

Fluff. Leaving

the

filter

out

will

also activate

the

warning.

The switch is

a reed switch

mounted

on

the

outlet

duct

assembly

and connectedtothe

microprocessor

board

through

edgeboard

connector

CC

(refertosche-

matic). Its contacts

are

closed

by

a

magnet

that

is stakedtoone

sideofthe

lint

filter. The contacts close

when

the

lint

filterisinserted

into

placeinthe

outlet

duct

assembly. When

the

lint

filterisremoved

the

contacts

will

open.

Note: The switch

does

not

prevent

the

dryer

from

operating,

its

functionisto

produceawarningtomake

operator

SECTION3.SERVICE PROCEDURES 3-18

awareofthe

necessity

for

cleaning

the

lint

filter.

To

remove

lint

filter

switch:

1.

Disconnect

power

supply.

2.

Remove

the

front

panel.

3. Separate

the

plastic

wire

connector

by

pUlling

apart.

4. Remove

the

two

screws

that

secure

the

switchtothe

outlet

duct

assembly.

To

check

the

lint

filter

switch:

CAUTION

----------,

Always

disconnect

power

supply

before

making

continuity

or

resist-

ance

checks.

1.

Separate

plastic

connector

by

pUlling apart.

2.

Check

for

continuity.

Attach

meter

across

wire

BR

and

BR

on

switch

sideofplastic

connector.

Remove

and

replace

lint

filter

to

check

for

opening

and

closingofthe

switch's

contacts.

COMPLETE OUTLET

DUCT

The

outer

halfofthe

outlet

ductisheld

to

the

frontofthe

tumbler

front.

1> Remove

front

panel.

2.

Remove

four

hex

screws

and

one

pozi-drive

screw

holding

outer

outlet

ducttotumbler

front.

3.

Remove

front

bulkhead.

ED/GD401 1090

4. Remove

outlet

duct.

TUMBLER FRONT BEARING

AND

PADS

At

the

bottom

insideofthe

tumbler

front

are

two

poly

teflon

bearings

which

rest on

cork

pads. These

bearings

provide

a surface

for

the

frontofthe

tumbler

to

ride

on.Ifitisnecessary

to

replaceafront

bearing,

remove

the

tumbler

front,

drill

out

old

rivets

and

rivet

new

bearings

on. In

positioning

the

bearing

and

pad,

the

projections

on

both

should

face

the

tumbler.

This

allows

the

bearingtostick

out

beyond

the

metalofthe

tumbler

front.

·Bearing

Note:

Two

tabs

on

each

sideofthe

tumbler

front

fit

into

notchesinthe

front

of

the

cabinet. These

must

be

disen-

gaged

to

remove

tumbler.

TUMBLER FRONT SEAL

The seal fits

around

the

back

circumfer-

enceofthe

tumbler

front.Itisanatural

felt seal

whichisdoubled

over

for

self-

adjusting

tension.

The

surface

which

comesincontact

with

the

revolving

tumbler,iscoated

withalayerofTeflon

to

provideaslick

durable

wear

surface.

The seal

is

heldinposition

by

formed

locking

tabs.

1.

Remove

tumbler

front.

SECTION 3. SERVICE PROCEDURES 3-19

2. Remove

the

old

seal

by

prying

the

locking

tabs out

witharegular

screwdriver.

The Teflon coated

side

(which is

the

lighterofthe

two

colors)

goes

against
the

tumbler.

The seal is then

looped

in

a

"U"

shape so

the

slot

edge of

the

lighter

colored

sideisto

the

tumbler

front.

Rubber

adhesive

is used to

hold

the seal

overlap.

Bend tabs back

over

seal with a

pair

of

pliers.

TUMBLER ALSO RIDES AGAINST
LIGHT COLORED SIDE

TUMBLER

AND

BELT

The

tumbler

is a

round

cylinder

with

no

permanently

attached

front

or

back.

Tumbler

speed is

47

RPM. It

is

designed

so

there

is no

front

or

back.

Installation can be

made

without

regard

to

which

wayitcame

outofa

dryer.

To

Remove

Tumbler

and

Drive

Belt:

1.

Remove

front

panel.

2. Remove

tumbler

front.

3.

Reach

under

tumbler

and

remove

drive

belt

from

motor

and

idler

pulleys.

THIS

SID~AGAINST

TUMBLER

BACK

I

4.

Slip

belt

off

tumbler.

5. Pull

tumbler

outofcabinet.

ED/GD401 1090

SECTION

3.

SERVICE PROCEDURES 3-20

INSTALLING DRIVE BELT

1.

Install

tumbler.

2.

Place belt

over

the

topofthe

dryer

tumbler

with

the

smooth

side

against

the

tumbler

and position it

about 1

1/2"

in

frontofthe

back

screws which

hold

the

clothes

lifters. In

ordertoget

the

belt

between

the

bottomofthe

tumbler

and

the

blower,itwill

be necessary

to lift up on

the

tumbler.

3.

The best

positiontotake

while

installing

the

belt is to sit on

the

floor

facing and as closetothe

dryer

as possible. Place

your

left

arm

along

the

left

sideofthe

tumbler

and

your

right

arm

along

the

bottomofthe

tumbler

(as close

to

the

blower

as possible).

4\

With

the

right

hand,

loop

the

belt

over

the

topofthe

motor

pulley

making

certain

the

groovesofthe

belt

are

against

the

pulley

and

that

the

beltisproperly

seated into

the

pulley.

ED/GD401 1090

5. With

the

left

hand,

loop

the

belt

under

the

motor

pulley.

6. With

the

right

hand,

position

the

belt

over

the topofthe

idler

pulley

and

begintoworkitaround

the

circum-

ference of

the

idler

pulley

while

pushing

the

pulley

up

andtothe

left.

Note: It is

neither

necessary

nor

advantageous

to push

extremely

hard

on

the

pulley. This

tends

to

put

the

idler

pUlley and

motor

pUlley

in a

bind

and also puts a

strain

on

the

installer

so he cannot

work

effi-

ciently

with

his

handstocomplete

the

belt

installation.

7. Once

tl'1e

belt is

almost

around

the

entire

circumferenceofthe

idler

pulley, use

the

left handtopush

the

belt

over"the

bottomofthe

idler

pulley

whileatthe

same

time

making

certain

that

the

belt

is

between

the

idler

pulley

and

the

belt

gUide.

SECTION3.SERVICE PROCEDURES 3-21

8.

With

the

belt

completely

installed,

feel with both

hands

to see that it is

properly

positionedinthe

motor

pulley

andinthe

approximate

middleofthe

idler

pulley.

When

you

have

determined

by

feeling that

it

is installed

correctly,

lift up and

push back

while

slowly

turning

the

tumbler

oneortwo

revolutionsina

clockwise

directiontoallow

the

belt

to

properly

align

itself.

CLOTHES LIFTER

There

are

three

tumbler

clothes lifters

used to

aidintumbling

the

clothes.

Two

of

the

lifters

are1"higher

than

the

other. Location makes no difference.

1.

Remove

front

panel.

2.

R~move

two

screws

holding

each

liftertothe

tumbler.

ED/GD401 1090

For

ease in

replacing

a clothes

lifter

you

will

find a

locating

tab

on

the

undersideofthe

lifter. Pilot holes

are

also

foundinthe

tumbler.

When

the

clothes

lifter

is installed,

the

tab

is

inserted

into the slotinthe

tumbler.

This

correctly

aligns

the

screw

holes

in

the

lifter

with

thoseinthe

tumbler.

ROLLER

AND

BEARING

ASSEMBL

Y

The

tumbler

roller

consistsofa

rubber

tire

bonded

to a plastic hub.

There

are

two

roller

and

bearing

assemblies attachedtothe

tumbler

rear.

Normally

the

rollers

will

run

slightly

behind

the

drum

radius. If

the

rollers

are

riding

up on

the

tumbler

radius,

check

for

bent

rear

roller
brackets. If a bracket is bent, replace
tumbler

rear.

1.

Remove

front

panel.

2. Remove

tumbler

front.

3. Remove

tumbler.

4.

Remove

retaining

ring

from

groove

in

shaft.

5. Remove

fiber

washer.

6. Remove

roller.

7. To

remove

roller

shaft

remove

nut

on back.

Note: There is a

spacer

washer

behind

the

roller.

When

replacing

parts be

certain

the

orderofthe

replacement

is

correct.

SECTION3.SERVICE PROCEDURES 3·22

00

Lubricate

with MAYTAG 55975 S.B.L.

TUMBLER

REAR FELT SEAL

The seal fits

around

the

front

circumfer-

enceofthe

tumbler

rear. It is a natural

felt seal which is

doubled

over

for

self-

adjusting

tension. The surface which

comes

in

contact

with

revolving

tumbler

is coated

withalayer

of Teflon to

provideaslick

durable

wear

surface.

1.

The felt seal

for

the

rear

tumbler

can

be replaced

from

the

frontofthe

dryer.

However,

for

easeinser-

vicing,

we

recommend

removal

of

the

tumbler

rear

from

the

dryer.

2. Remove

the

old

seal by

prying

the

locking

tabs

out

witharegular

screw

driver.

3. The Teflon coated

side

(which is

the

lightofthe

two colors) goes

against

the

tumbler.

The seal is then

looped

in a

"U"

shape so

the

slot edge

of

the

light

colored

side

is cemented

to

the

tumbler

back.

Rubber

adhesive

is usedtohold

the

seal

overlap.

4.

Install new seal and bend tabs

back

over

seal

withapairofpliers.

\.

ED/GD401 1090

TUMBLER

ALSO

RIDES AGAINST

LIGHT COLORED SIDE

I

THIS SIDE AGAINST
TUMBLER

BACK

TUMBLER

REAR

The

tumbler

rear

is securedtothe

back

panel by

four

screws. It is finished with

an epoxy

powder

coat

which

is a

very

smooth surface, resistanttoscratches

and

abrasion.

The

tumbler

rear

acts as a

support

for

two

roller

assemblies

which

support

the

tumbler

and

weightofthe

load.

Removal:

1.

Remove

front

panel.

2. Remove

tumbler

front.

3. Remove

tumbler

and belt.

4.

Remove heat cone.

5.

From

backofdryer,

remove

four

screws

holding

tumbler

back

assembly

and

remove

assembly.

SECTION3.SERVICE PROCEDURES 3-23

THERMOSTATS

THERMOSTATS

There

are

three

different

kindsofther-

mostatsinthese

dryers.

1.

Bi-Metal

type~

2. Resistance

type

(Multi-temperature).

3. Thermal Fuse type.

All

react

essentiallytotemperature

with

direct

effect on heat onorheat off func-

tionsofa

dryer.

To

remove

those

located

on

blower

cover:

1.

Remove 2 screws

from

Front

Panel

and swing panel out.

2. Remove

wires

from

thermostat.

3. Remove screws

securing

thermostat

to cover.

160

0

THERMOSTAT -

Microprocessor

Models
Bi-Metal

Type

The 160°

thermostat

functions as a back

up

to

the

thermistor.

It is

mounted

on

the

blower

cover. The

thermistor,

in

conjunction

with

the

microprocessor

boar~

and

heater

relay, is used

to

control

the

cyclingofthe

temperature

between 135°F and 155°F. The 160°

thermostat

is placed in series

with

the

gas

valve

I heating element and

will

open

the

heat

circuitinthe

event

the

thermistor

failstoopen

the

circuit

at

temperatures

above

155°F.

ED/GD401 1090

To

remove

the

1600thermostat:

1.

Disconnect

power

supply.

2.

Remove

front

panel.

3. Remove

the

thermostat

cover

mountedtothe

base (electric

dryer

only).

4.

Disconnect

wires

from

the

thermo-

stat.

5.

Remove

the

two

screws securing

the

thermostattothe

blower

cover.

To check

the

1600thermostat:

CAUTION

----------,

Always

disconnect

power

supply

before

making

continuity

or

resist-

ance checks.

Check

for

continuity

across

thermostat

at

room

temperature.

Attach

meter

across

terminals

BK

and PU. No conti-

nuity, replace.

THERMISTOR

-

Microprocessor

Models

Resistance Type

The

thermistor

is a

semiconductor

device

(solid state)

that

has a negative

temperature

coefficientofresistance;

its resistance

decreases

as its

temper-

ature

increases and

vice

versa. The

thermistor

functions

as

the

"sensing

control"

for

the

dryer's

heat

circuit.

No..

cycling

thermostat

is used. It is

mounted

on

the

blower

cover

and is

SECTION3.SERVICE PROCEDURES 3-24

connectedtothe

microprocessor

board

through

edgeboard

connector

CC

(refer

to schematic).

Mounted

on

the

blower

cover

puts

the

thermistor

in

the

air

flow

of

the

air

being

exhausted

from

the

drum.

The

increasing

or

decreasing

temperatureofthe

exhausted

air

changes

the

resistanceofthe

thermistor.

The

microprocessor

board

uses

this

input

information

to

control

the

heat

circuit.

On

the

electric

dryer

the

microprocessor

board

controls

the

24

DC

voltagetothe

heater

relay, on

the

gas

dryeritcontrols

the

L1

side

of

the

power

supply

through

edgeboard

connector

BB

(refertoschematic).

To

remove

thermistor:

1.

Disconnect

power

supply.

2. Remove

front

panel.

3" Remove

the

thermostat

cover

mountedtothe

base (electric

dryer

only).

4.

Remove

the

two

wires,

PK-BK

and

PK-BK,

from

the

thermistor.

5.

Remove

the

two

screws

that

attach

the

thermistortothe

blower

cover.

ED/GD401 1090

Check

the

thermistor:

1.

Remove

the

two

wires

on

the

thermistor,

PK-BK

and PK-BK.

2. Place

ohm

meter

across

these

wires
and check resistanceofthe
thermistor.

At

room

temperature,

77°F, you

should

read

about

10,000

ohms.

At

140°F

you

should

read

about

1750 ohms.

Note: Do not check

with

line

voltage

(120 VAC),

the

thermistorispartofthe

low

voltage

circuitry.

THERMAL FUSES

The functionofthe

thermal

fuse and

thermal

cut-off istostop

the

dryer

in

the

event an

over

heating

condition

should

occur. The

electric

dryer

has a

thermal

fuse

mounted

on

the

right

side

of

the

heat cone and a

thermal

cut-off

mounted

on

the

blower

cover. The gas

dryer

has a

thermal

cut-off mounted on

the

blower

cover.

Both

are

referred

to

as

"thermal

fuse"

on

the

electrical

schematic. The

thermal

fuse

and

cut-off

are

placed in

series

with

the

drive

motor.

If oneofthese

should

open, the

drive

motor

will

stop and

the

circuit

through

the

centrifugal switch

for

the

gas

valve

/ heating

element

will

also

open,

breaking

the

heat

circuit.

The

thermal

fuse and

thermal

cut-off

are

not

interchangeableorresettable and

must

be replaced

after

the

over

heating

problemiscorrected.
Note:

If

oneofthese

thermal

devices

opens,itindicates

something

has

caused an

unusual

amountofheat

to

build

up

around

the

device.Ifthis

happens,

depending

on

the

model,

REPLACE

the

hi-limit

thermostat

and

cycling

thermostat

or

the

hi-limit

ther-

SECTION 3. SERVICE PROCEDURES 3-25

mostat and

the

160°

thermostat

and

thermistor/microprocessor

board

com-

bination

along

with

the

thermal

device

that failed.

To

remove

thermal

fuseorcut-off:

1. Disconnect

power

supply.

2. Remove

front

panel.

3.

Remove

thermostat

cover

mounted

to

the

base (electric

dryer

only).

4. Disconnect

the

wires

from

the

thermal

cut-off.

5. Remove

the

two

screws attaching

the

thermal

cut-off to

the

blower

cover.

6.

For

the

fuse

mounted

on

the

heat

cone (electric

dryer

only).

A. Remove

the

screw

that secures

the

fuse brackettothe

heat cone.

B. Remove

wires

and

the

two

screws

that

attach

the

fusetothe

bracket.

To

check

the

thermal

fuseorthermal

cut-off:

CAUTION

---------.,

Always

disconnect

power

supply

before

making

continuity

or

resist-

ance checks.

1.

Disconnect

power

supply.

ED/GD401 1090

2. Remove

front

panel.·

3.

Remove

wires

from

the

thermal

fuse

or

thermal

cut-off.

4. Check

for

continuity.

Attach

meter

across

the

terminalsofthe

fuse

or

cut-off. No

continuity,

replace fuse.

MUL

T1-

TEMPERA

TURE

Resistance Type

These

thermostats

have 3

temperature

options

depending

on

resistorsinthe

circuit.

For

example, no

resistor

(internallyinthermostat

oratselector

switch);

cycling

temperature

will

be

150°, Full

voltage

(through

internal

resistor

in thermostat); cycling

temper-

ature

will

be 140°.

If a series

circuit

is selected

using

resistorinthermostat

and

resistor

at

selector

switch,

cycling

temperature

will

be 145°.

To

replace

thermostat:

1.

Disconnect

power

supply.

2. Remove

front

panel.

3.

Remove

thermostat

cover

mounted

to

the

base

(electric

dryer

only).

4.

Disconnect wires.

5. Remove

two

screws attaching

thermosat

to

blower

cover.

SECTION3.SERVICE PROCEDURES 3-26

BLOWER

RETAINING

RING

COVER FOR

BLOWER

SEAL FOR BLOWER

The felt seal

for

the

blower

is secured

to

the

lipofthe

cover

for

the

blower. If

a seal

is

replaced, clean surface

and

use Maytag Part No. 55978

rubber

adhesivetohold

seal.

COVER FOR BLOWER

1.

Remove

front

panel.

2. Remove

tumbler

front.

3. Remove

six

screws

holding

cover

to

blower

housing.

4. Remove

screw

holding

cover

to

\ base.

5.

It is

not

necessary to

remove

wires

from

thermostatstogain access

to

blower.

Simply

lay

blower

cover

forward.

ED/GD401 1090

BLOWER

HOUSING

BLOWER IMPELLER

The

blower

impeller

is attached

directly

to the

motor

shaft

and

behind

the

blower

cover.

1.

Remove

blower

cover.

2. Remove

clip

retaining

ring.

3.

Compress

and

remove

clamp

around

hubofimpeller.

4.

Work

impeller

back and forth

while

pulling

off shaft.

BLOWER HOUSING

1.

Remove

blower

impeller.

2.

Remove

clip

retaining

ring

located

behind

blower

impeller.

3.

Remove

four

screws

holding

blower

housing to

motor

mounting

bracket.

SECTION 3. SERVICE PROCEDURES 3-27

4.

Remove

blower

housing.

5.

When

replacing

blower

housing

be

certain

the

clip

retaining

ring

is

properly

replaced into

the

groove

in

the

motor

shaft.

EXHAUST

DUCT

PIPE

One endofthe

exhaust

duct

pipe

is

heldtothe

back of

the

cabinet

by

one

screw. It fits

over

the

blower

housing

on

the

opposite

end.

the

heat

source

when

motor

reaches

speed.

The external

motor

switch is secured

to

the

motor

with

two

screws.

1.

Remove

front

panel.

2. Remove

tumbler

front.

3. Remove

tumbler.

4.

Remove

two

screws

holding

switch

to

drive

motor.

MOTOR

PULLEY

DRIVE MOTOR AND IDLER
ASSEMBLY

Shown is

the

2-groove, 60 Hz,

47

rpm

pulley. This

identifies

the

pulley

for

60

Hz. operation. 50 Hz. has 3

grooves.

A

switching

deviceina

motor

used

to

change

the

pathofelectricity

from

both

start and run

windings

to

run

winding

only. It also completes

the

circuit

to

1.

Remove

front

panel.

2. Remove

tumbler

front.

3. Remove

tumbler.

4.

Place hexhead

wrench

in set screw.

5.

Usingahammer

or

rubber

mallet,

stri ke

the

endofthe

hexhead

wrench, as shown.

NOTE

GROOVES

IDLER
PULLEY

MOTOR

PULLEY &

SET

SCREW

SPACER

IDLER ARM

& SHAFT

I

MOTOR

BASE

MOTOR

CLIPS

<~

MOTOR -J -

~

/

~

SWITCH

/~

.

'.

DRIVE

MOTOR

MOTOR

SWITCH

GROUND

WIRE

~---_I

ED/GD401 1090 SECTION3.SERVICE PROCEDURES 3·28

MOTOR
SUPPORT

MOTOR

PULLEY

ADJUSTMENT

Positioningofthe pUlley on

the

motor

shaft is

important

for

proper

alignment

with

the

idler

assembly. The distance

from

the backofthe

motor

pulley

to the

face

of

the

motor

support

must

be 3/8".
A metal gage (Maytag Part No. 38623)
is

available

which can be used to

prop-

erly

position

the

pulley.

To

use

the

gage,

simply

place

the

thicker

part

against

the

motor

support

and

the

thinner

end between

the

pulley

and

the

mounting

ring.

With

the

proper

3/8"

dimension

established,

tighten

the

pulley

set screw.

ED/GD401 1090

When replacing

the

motor

pulley

make

sure

the

set

screw

aligns

with

the

flat

side

of

the

motor

shaft. Tighten set

screw securely.

DRIVE

MOTOR

AND

BASE

1.

Remove

front

panel.

2.

Remove

tumbler

front.

3.

Remove

tumbler.

4. Remove two screws securing

motor

base to base frame.

5.

Remove

wires

from

motor

and

unhook

idler

spring.

6.

Slide

motor

base tab

from

base

frame.

7. Remove

motor

and

blower

assembly

from

cabinet.

8.

Remove

blower

component

from

motor

..

Note: When

installing

motor,

be

sure to

slide

motor

base

tab

into

slotinbase frame.

SECTION 3. SERVICE PROCEDURES 3-29

9.

Using

pliers

or

screwdriver,

roll

the

clips

offofthe

motor

mounts.

10.

Remove

motor

from

motor

base.

IDLER

ASSEMBL

Y

1.

Remove

front

panel.

2.

Remove

tumbler

front.

3.

Remove

tumbler.

4.

Remove

spring

and

screw

holding

assembly.

Note: When

replacing

the

idler

assembly

applyalight

coatingof56016

May

tag

center

seal

greasetothe

motor

support

where

it is contacted

by

the

spacer

for

the

idler.

ED/GD401 1090

IDLER

PULLEY

1.

Pry

clip

from

groove

in shaft

with

a

small

screwdriver.

2. A

fiber

washerislocated

on

both

sidesofthe

pulley.

Be

certain

these

are

replaced

when

you

reassemble

these

parts.

SECTION 3. SERVICE PROCEDURES 3-30

HEATING ELEMENT AND RELATED COMPONENTS

~-

ELECTRIC

MODELS

Jumper

WII'lI

H.atar

CoM~

-~

I'

I

\ HIgh

LImIt

~.}

Thermoetat

Upper

CoRa

HEAT

CONE

1.

Remove

front

panel.

'2.

Remove

screws

holding

heater

cone

\,

shieldtobase.

Remove

shield

from

dryer.

3. Remove

screwinfrontofcone

holding

conetobase and

remove

ED/GD401 1090

screwinbackofcone

holding

cone

tabtoinlet

air

duct.

4.

Remove

wirestoterminal

posts.

5. Pull cone

outofdryer.

SECTION3.SERVICE PROCEDURES 3-31

HEATfNG

ELEMENT

The heating

elementiscoiled

and

strung

through

insulatorsinthe

heat

cone. The

standard

dryerisequipped

with

a heating

element

designed

to

draw

approximately

5300

watts

when

operated on 240

volts.

1.

Remove

heat cone.

2.

Remove

four

screws

holding

cone

halves

together

and

lay

halves

side-

by-side.

3.

Remove

nuts

from

insulators

holding

endsofelement.

4.

Using

pliers,

squeeze and

straighten

insulator

clips

and

push

clips

out

of

heat cone halves. Thread

insulators

offoforiginal

element.

\"-

ED/GD401 1090

STRAIGHTEN­TAB

AND

PULL

THROUGH

5. Inspect

insulators,

replace

any

that

are

damaged.

6.

Drop

insulators

over

new

element.

7. Place

looped

endsofnew

element

over

terminal

studs

and

replace

nuts.

(Don't

overtighten,

you

may

crack

insulator.)

8.

Reinsert

insulator

clips

and

secure

by

twisting

tabs

with

pliers.

Main-

tain

slight

tension

on

the

element

as

clips

are

reinstalled.

(See Photo.)

9.

Be

very

careful when

installing

new

element

so

the

elementisnot

stretched. If

you

come

up

short

or

long

on

elementatthe

end, go

back

and

readjust

the

element

from

the

beginning.

Do

not

stretch

the

last

partofthe

elementtofit.

Check

for

cracked

insulators.

Any

that

are

damaged

should

be replaced.

10.

Be

sure

element

does

not

touch

insulators.

Also,

make

sure

the

electrical

connections

are

tight.

SECTION3.SERVICE PROCEDURES 3-32

HI-LIMIT

THERMOSTAT

The

hi-limit

thermostat

in an

electric

dryer

is located on

the

heat cone. It is

many

times

referred

to as

the

safety

thermostat.

This

thermostat

is located

close

to

the

heating

element andinthe

event of

an

overheating

condition,

will

cycle

the

heat

off qUickly. If a

dryer

is

foundtobe

cycling

on

the

hi-limit,

check

for

an

air

flow

restriction.

To

replace:

1.

Remove

front

panel.

2. Loosen

back

screw.

3. Remove

front

screw.

4.

Remove

wires

and

slide

thermostat

out.

ED/GD401 1090

INLET

DUCT

To replace

the

inlet

duct,itwill

be nec-

essarytoremove

tumbler

rear. The

inlet

duct

is secured to

the

tumbler

rear

by

three

screws, one at

the

top

and two

at

the

bottom

under

the

felt seal.

SECTION3.SERVICE PROCEDURES

3·33

GAS VALVE AND RELATED COMPONENTS

The gas

controls

utilizeadirect

ignition

system (there is no

pilot

light). The

three

major

componentsofthe

gas are:

Igniter,

Radiant

Sensor

and

Gas Valve.

1.

IGNITER -- When

the

controls

call

for

heat,

line

voltageisapplied

to

the

igniter.

This causes

the

igniter

to

heat up

becoming

cherry

red. It

can reach a

temperatureofapproxi-

mately

2200° Finabout

30 seconds.

ED/GD401 1090

Gas contacting

igniteratthis

tem-

perature

will

ignite

immediately.

2. RADIANT SENSOR -- The

radiant

sensor

operates

much

likearegular

thermostat.

It is

mountedtothe

sideofthe

combustion

cone

over

an

opening

which

exposes

the

sensor

to

the

igniter

and

burner

flame.

In

its

normal

condition,

the

contacts

in

the

radiant

sensor

are

closed and

the

circuitiscompletedtothe

SECTION3.SERVICE PROCEDURES 3-34

HOLDING

COIL

The

complete

system

functions

as

follows:

IGNITER

BK

I'

:\

RADIANT

"

.)

SENSOR

BK

BK

R

COIL R

VALVE

1 VALVE 2

~

HOLDING

r--...;:B:;.:.K~

...

..,

COIL~r······

R·

R

TO

MOTOR

The

sensor,

igniter

and

gas

valve

are

all

interrelated

and

function

as

an

ignition

and

heat

source.

At

the

startofthe

cycle,

the

sensor

con-

tacts

are

closed,

the

igniter

is at

room

temperature

and

the

gas

valve

is

closed

blocking

the

flowofgas.

igniter.

As

the

igniter

heats

up,

the

heat

radiated

by

the

igniter

causes

the

radiant

sensor

contactstoopen

breaking

the

circuittothe

igniter.

3. GAS VALVE -- The

gas

valve

is

actually

two

gas

valves,

one

in

series

with

the

other.

Thisisa

safety

feature

providing

added

pro-

tection

against

gas

releasedinthe

eventofa

failureofoneofthe

valvestoseat

properly.

The

first

valveisopened

bya

solenoid

which

has

two

separate

coils

built

into

one

solenoid.

This

solenoid

uses

whatistermedasplit

coil. The

coils

are

referredtoas

the

holding

coil

and

the

booster

coil.

BOOSTER

COIL

Both

coils

are

needed

to

lift

the

armature

and

open

the

valve.

The

holding

coilisstrong

enough

to

\

, keep

the

valve

open

once

the

arma-

ture

has

been

lifted.

The

secondofthe

two

valves

is

operated

by

the

traditional

one

coil

solenoid.

Thisiscalled a

secondary

coil.

SECONDARY
COIL

First,

note

on

the

wiring

diagram

that

the

radiant

sensor

contacts

are

wired

across

the

secondary

coil.

This effec-

tively

bypasses

current

around

the

sec-

ondary

coil

when

the

radiant

sensor

ED/GD401 1090

SECTION3.SERVICE PROCEDURES 3-35

contacts

are

closed. Valve 2

cannot

open

with

the

radiant

sensor

contacts

closed.

The

booster

coil

and

the

igniter

are

also

wiredinparallel.

Note

that

while

these

two

components

areinparallel

with

each other,

they

are

wired

in

series

with

the

radiant

sensor

and

sec-

ondary

coil

combination.

When

the

radiant

sensor

contacts

are

closed, full

line

voltageisavailabletothe

booster

coil andtothe

igniter.

When

the

radiant

sensor

contacts

open

current

hastoflow

through

the

secondary

coil

on Valve 2 in

ordertogettothe

booster

coil

andtothe

igniter.

A

signif-

icant

voltage

drop

develops

across

the

secondary

coil. While

the

parallel

booster

coil

and

igniter

are

stillinthe

circuit,

they

become

ineffective

due

to

the

greatly

reduced

voltage

available

to

them.

Operation: Dryer controls calling for
heat.

PHASE

I

Power

reaches

the

valve

assembly

by

meansofthe

Molex

wiring

connector.

The

black

valve

harness

wire

is

normally

the

"hot"

sideofthe

line

and

the

redisnormally

the

neutral

side

of

the

line

andiscompleted

through

the

motor

centrifugal

switch.

\

Radiant sensor contacts

clo~ed.

The

holding

coil,

booster

coil

and

igniter

all

receive

line

voltage. The

holding

coil

and

booster

coil

develop

ED/GD401 1090

the

necessary

magnetic

pulltoopen

Valve

1.

The

igniter,

operatingatline

voltage,

beginstoget

very

hot. The

heat

radiated

by

the

igniter

affects

the

elementofthe

radiant

sensor.

IGNITER

Because

the

secondary

coil

on Valve 2

is

bypassed

by

the

radiant

sensor

con-

tacts, Valve 2

remains

closed

and

pre-

vents

the

releaseofgas.

PHASE

/I

The

igniterisnow

hot

and

Valve NO.1

is open. With

the

igniter

hot,

two

things

occur:

1.

As

the

igniter

is heated, its resist-

ance decreases.

2. The heat

from

the

igniter

causes

the

radiant

sensor

switch

to open.

SECTION3.SERVICE PROCEDURES 3-36

PHASE

11/

Valve 1 is

being

held

open

by

the

holding

coil and

with

the

radiant

sensor

contacts open becauseofthe

intense

heat

from

the

igniter,

the

current

paths

in

the

circuit

change.

1.

With

the

sensor

contacts open,

the

secondary

coil is no

longer

bypassed. It is

nowinseries

with

the

parallel

combinationofthe

booster

coil

and

the

igniter.

120

VOLTS

SECONDARY}

116

COIL

VOLTS

BOOSTER

,--

..........

--,

IGNITER}

4

COIL 10-40

VOLTS

700 OHMS

~-r---'

OHMS

IGNITER

,8K

~

HOLDING

~-r---=8;;,;;,;K;"'---4~

__

'"

8~~1]

lli

I

)8~~~1

_ t

-w--

W

M~~OR

t t

~

!;::":::'!"!l.

800S+TE-R

-;1

t_

~

..

:::-

COIL _

-R+

VALVE

1

VALVE

2

Becauseofthe

very

low

resistance

of

the

hot

igniter,

mostofthe

line

voltageisdropped

across

the

sec-

ondary

coil.

Onlyasmall

per-

centage is

dropped

across

the

booster

coil

and

igniter.

ED/GD401 1090

2. The

secondary

coil

now

opens Valve

2

releasing

gas

across

the

still

extremely

hot

igniter.

The

burner

flameisignited.

While

the

igniter

will

cool,

the

tip

is

positionedinthe

burner

flame which

keeps

it

hot

and

the

resistance low.

The

ignition

cycle is

now

completed

and

the

drying

cycle begins.

The gas

valve

as

shipped

with

the

dryer

or

for

repair

is set

for

use

with

natural

gas, Becauseofdifferencesinoper-

ating

pressure

and heat content

of

other

gases,

the

valve

must

be con-

vertedtouse

fuels

other

than natural

gas.

Conversion

kits

are

availabletoconvert

from

naturaltoL.P

.G.

and

back

from

L.P.G.tonatural.

Check

parts

catalog

for

correct

part

number.

SECTION 3. SERVICE PROCEDURES 3-37

GAS CHART

GAS TYPE

NATURAL

LPG

BTU PER CU.

FT.

1075

2500

PRESSURE INCHES 3.5

11

SPECIFIC GRAVITY

0.65

1.53

DRILL SIZE

42

54

COIL

REPLACEMENT

To

replace

the

coils

on

this

valve,

unplug

the

dryer

from

the

wall receptacle. From

the

front

through

the

gas

valve

access

door,

unplug

the

wire

harness

from

the

gas

valve

coils. Notice

the

holding

and

booster

coils

are

now

molded

together

and

a

three-prong

connector

is usedtoconoect them. The

secondary

coil uses a

two-

prong

connector. Once

the

coils have been

unplugged,

remove

the

two

screws

that

secure

the

coil

holding

bracket. Remove

the

bracket and lift

the

coils

off. Replace

coils, bracket and

wire

harness.

Note: The coil

positioning

tabs

and

matching

holesinthe

coil

holding

bracket

for

each coil.

ED/GD401 1090 SECTION3.SERVICE PROCEDURES 3-38

IGNITER

The

igniter

is used to

ignite

the

gas as

it comes

from

the

gas

valve.

It is

located on

the

left sideofthe

burner

(as

viewed

from

the

frontofthe

dryer).

The

igniterisvery

fragile

and

must

be

handled

carefully. Should

you

find an

igniter

which has shattered, replace

igniter.

Operate

dryer

and seeifigniter

stays on. If

igniter

stays on

longer

than

40

seconds, replace

radiant

sensor.

1.

Remove

front

panel.

2.

Unplug

igniter

from

gas

valve

(plug

type

connector).

3. Remove

screw

and

washer

holding

ignitertoburner.

'RADIANT

SENSOR

\""

The

radiant

sensor

acts much like a

thermostat.

1.

Remove

front

panel.

2.

Remove

wires

from

sensor.

ED/GD401 1090

3. Remove

screw

holding

sensor

to

heat cone.

4. Pull

tab

on

sensor

bracket

from

slot

in

heat cone.

HI-LIMIT

THERMOSTAT

The

hi-limit

thermostatismany

times

referredtoas

the

safety

thermostat.

This

thermostatislocated closetothe

heat source.

If a

dryeriscycling

on

the

hi-limit

ther-

mostat, check

for

restrictionsinthe

air

flow

pattern.

1. Remove

front

panel.

2. Loosen back screw.

3. Remove

front

screw.

4. Remove

wires

and

slide

thermostat

out.

GAS

VALVE

REMOVAL

1.

Remove

front

panel.

2. Shut off gas

supply

and

disconnect

supply

linetovalve.

3. Remove

two

screws

holding

valve

and

burner

assembly

to

base.

4.

Disconnect

wire

harness'atvalve

coils.

5. Disconnect

wires

from

radiant

sensor

molex.

6.

Slide

valve

bracket outofslot

in

base and

remove

valve

and

burner

assembly.

7. Remove

two

screws

holding

valve

bracket and

burnertounderside

of

gas valve.

SECTION3.SERVICE PROCEDURES 3-39

ORIFICE

The

orifice

can be

removed

witha3/8"

wrench.

ED/GD401 1090

HEAT

CONE

1.

Remove

front

panel.

2. Remove gas valve.

3. Remove

screwinfrontofcone

holding

conetobase.

4.

Remove one

screwatbackofcone

holding

cone

tabtoinlet

air

duct.

5. Pull cone out

of

dryer.

INLET

DUCT

This

duct

serves to channel heated

air

into

dryer

tumbler.

1.

Remove

front

panel.

2.

Rernove

tumbler

front,

tumbler

and

belt.

3.

Remove screws

securing

heat cone

to base

andtoinlet

duct.

4.

Remove

tumbler

back. Note

four

screws

are

accessible

from

behind

dryer.

5.

Remove screws

securing

inlet

duct.

SECTION3.SERVICE PROCEDURES 3·40

CABINET AND TOP COVER

CONSOLE

1.

Remove

control

panel

assembly.

2. Remove

eight

screws,

two

on each

side

and

four

across

the

front,

holding

consoletotop

cover.

TOP COVER

1. Remove

front

panel.

~

2. Remove two screws (one

in

each

front

corner)

which

hold

top

cover

to

cabinet.

3. Remove

main

wire

harness

wiring

from

components

on

control

panel.

FRONT

CABeNET

PANEL

I

4.

Remove

control

panel assembly.

I

5.

Pull

main

wire

harness

through

I

I

openingintop

cover.

6. Remove console.

7.

Push

top

cover

backtodisengage

from

cabinet

and

remove

top

cover.

CABINET REMOVAL

1.

Remove

front

panel.

2. Remove

top

cover

assembly.

3.

Remove

tumbler.

4.

Remove

tumbler

rear.

5.

Remove

six

screws (three on each

side)

holding

cabinet to base frame.

Remove screws at

front

corners

and

across

back. Remove cabinet.

ED/GD401 1090 SECTION3.SERVICE PROCEDURES 3-41

ED/GD401 1090

SECTION

3.

SERVICE PROCEDURES 3-42

SECTION

4.

PRE-INSTALLATION CONSIDERATIONS

LOCATING DRYER

Dryer

should

be located as closetothe

washer

as possible,

considering

availability

of

gas,

electricity

and

location

that

makes

exhausting

practical.

For

proper

operation,itis

important

to

make

sure

the

room

where

dryerislocated

has

adequate

make-up

air.

This is

especially

importantinany

areas

such as

bedroom, bathroom

or

closet.

On gas

dryers,

adequate

clearance

must

be

maintainedtoinsure

adequate

air

for

combustion

and

proper

operationofthe

dryer.

The

area

where

the

dryerislocated

must

not

obstruct

the

flowofcombustion

or

ventilating

air.

When

locatingaMay

tag

dryer,

the

following

dimensions

should

be taken

into

consideration.

When

installing

the

dryer

the

following

minimum

clearancestocombustibles

shall

apply:

clearancetowall:

sides

- 0 inches,

top

- 0

inches

with

outside

exhaust,

rear

- 0

inches

with

outside

exhaust, 6

inches

with

inside

exhaust.

Dimensions

1

34em

--l

Scm

72.3

em

If-'

---

28'1,'

,

~]

.

•.

. .

-

. .

,

.

.

.

,

.

......

CORD

I

.

I

.

•

.

~_.~.

-

CORDINGTOADJU$'f'M[NT

===-

OF

LEY[UNG UGS

::::=::=

.f:=D\~$

~

L

3'.4'

•

9.5

em

•

'.J

~

2"

,

~

137/16"

213/16"

7.1

em

31,

9.Sem

27'

-j

I

72.3

em

58.Bem

28'1,'

I

\\

I

I

~

1

Y2-

I

a,..··'

....

~

3.8em

IlOCk

,

.

•

.

.

.

.

.

~~

43%'

I

110.8

em

I E

I

r"u

.~

"",,:

.

. .

.

.

C;;

,

1

,U

_._--

I:

1

~~em

CORDINGTOADJUSTMENT

====

Of

L[VW..LEGS

I

-$

;::::::::;

\L

_

====

3'.4'

~

0

0

• 9.5

em

•

..J

l-

I •

ELECTRIC

GAS

Plus space between

cabinet

and

floor.

ED/GD401 1090

SECTION

4.

PRE-INSTALLATION CONSIDERATIONS 4-1

EXHAUSTING

DO NOT EXHAUST DRYER INTO ANY
WALL, CEILING, CRAWL SPACE OR A
CONCEALED SPACE OF A BUILDING,
VENT CONNECTION, GAS VENT OR
CHIMNEY. THIS COULD CREATE A
FIRE

HAZARD

FROM LINT EXPELLED

BY

THE

DRYER. FOR

THE

SAME

REASON,

WE

RECOMMEND ONLY
METAL EXHAUST DUCT TO MINIMIZE
RESTRICTED AIR FLOW

AND

RELI-

ABLY

INSURE

THE

CONTAINMENT OF
EXHAUST AIR, HEAT AND LINT.
NEVER INSTALL A SCREEN OVER
EXHAUST OUTLET. NEVER USE
PLASTIC OR OTHER COMBUSTIBLE
DUCTWORK. FREQUENTLY CHECK
AND

CLEAN VENT HOOD

TO

ASSURE

PROPER OPERATION.

A clothes

dryer

produces

combustible

lint

and

the

area

around

the

clothes

dryer

should

be kept free of lint. It is

recommended

that

the

dryer

be

exhausted

to

the

outside

using4"rigid

or

flexible

metal

ducting.

When located in a

bedroom,

bathroom

or

closet,

the

dryer

must

be exhausted

to

the

outsideofthe

dwelling.

Once

locationofthe

exhaust outlet is

determined,

a 4

1/4"

hole

should

be cut

in

the

wall to accept

the

exhaust hood.

To

permit

sufficient

air

circulation

under

the

exhaust hood,

there

should
be no less than a 12" clearance
between

the

bottomofthe

exhaust

hood'and

the

ground.

When possible,

the

exhaust

hood

should

not exhaust

ED/GD401 1090

directly

into a

window

well.

DO

NOT

TERMINATE EXHAUST UNDER A
HOUSE OR PORCH.

Note: Where

the

exhaust

hoodisto

be

installed

through

masonry,

a special

masonry

saw is necessarytocut

the

hole.

Install

the

exhaust

hood

and

secure

with

screwstothe

outside

wall

and

seal

with caulking

compound.

The exhaust

hood

may

also be installed

throughawindow

by

installing

a

window

plate.

Window

plates

are

avail-

able. Install as shown.

Install

ductwork

from

the

dryer

to

exhaust

hood.

All

joints

must

be

made

so exhaust end of

one

pipeisinside

the

intake end of

next

pipe. On

flexible

metal

ductwork,

all

joints

should

be

secured with a clamp.

DO

NOT

use

sheet metal screws when

assembling

rigid

ducting.

These

should

be taped.

SECTION4.PRE-INSTALLATION CONSIDERATIONS 4-2

FLEXIBLE DUCTWORK L1MITATlONS

Flexible

metal

ductwork

should

not

exceed

34'ofstraight

4"

ducting.

The

exhaust

hoodisequivalent

to8'of

duct

and

each 90

degree

bendisequivalent

to

8'.

As

an

example,ifan

exhaust

hood

is used

and

two

90

degree

bends,

the

maximum

straight

run

would

be 10'.

Note:

If

the

radiusofa

bend

with

4"

duct

is 12"orgreater,

the

bend

can be

consideredastraight

run.

No

more

than

three

90

degree

bends

should

be

used

in

any

run

with

an

exhaust

hood.

RIGID DUCTWORK LIMITATIONS

Rigid

metal

ductwork

should

not

exceed

50'ofstraiglit

4"

duct.

Each 90

degree

elbow

and

the

exhaust

hood

should

be

considered

equivalentto8'

'a{

straight

ductwork.

For

example,ifan

exhaust

hood

and

two

90

degree

elbows

are

used,

the

maximum

straight

duct

allowed

would

be

26'.

Not

more

than

three

90

degree

elbows

should

be

used

in

any

rigid

ductwork

run

with

an

exhaust

hood.

Four

feetofstraight

ED/GD401 1090

duct

should

be

allowed

between

90

degree

elbows.

GUIDE FOR PROPER EXHAUSTING

1.

Keep

the

duct

as

short

as

possible.

The

longer

the

duct

the

more

friction

and

resistancetoair

flow.

2.

Keep

the

numberofelbows

and

the

degreeofbendtoa

minimum

to

minimize

air

resistance

due

to

dynamics.

We

recommend

that

not

over3elbows

be

installedinthe

duct.

3. The

smoother

the

inside

sUrfa~e

of

the

duct,

the

less

the

friction

and

the

greater

the

air

flow. Itisbecause

of

this

that

we

recommend

using

smooth

rigid

aluminum

ductwork.

Flexible

ductwork

has a

spiral

washboard

surface

which

increases

friction

and

sets

up

dynamic

turbu-

lence

which

decreases

air

flow.

4.

Never

reduce

the

areaofthe

duct.

A

4"

round

duct

has

an

area

of

approximately

12.57

square

inches.

The

areaofthe

duct

should

never

be

reduced

below

this

figure.

5.

Dryers

should

be

exhaustedtothe

outsideofthe

building.

6. Do

not

exhaust

dryer

into

any

wall,

ceiling,

crawl

space, a

concealed

spaceofa

bUilding,

vent

connection,

gas

vent

or

chimney.

A

lint

accumu-

lationinsuch

an

area

createsafire

hazard.

7. When

locatedina

bedroom,

bathroom

or

closet,

the

dryer

must

be

exhaustedtothe

outsideofthe

dwetring.

8. Do

not

install

vent

hoodatground

level.

There

should

be a 12"

(30.5cm)

clearance

between

the

SECTION4.PRE-INSTALLATION CONSIDERATIONS 4-3

bottomofthe

exhaust

hood

and

the

ground.

9.

All

exhaust

duct

joints

should

be

taped

to

prevent

lint

and

moisture

laden

air

from

being

expelled

into

the

building.

10. The exhaust

duct

and

vent

hood

should

be checked

periodically

and

cleaned as necessary

to

prevent

a

lint

build-up.

CFM AIR FLOW

PERFORMANCE

LENGTH

of

STRAIGHT

DUCT

RIGID

- FLEXIBLE

*Note 2

160+

Best 23'

-

13'

150 Good 34'

-

18'

140

Acceptable

45'

-

26"

130

Marginal

*Note 1

50'

-

34'

NOTE

No.1

Chart

lists

this

as

the

maximum

for

"marginal"

operation.

Under

this

con-

dition,

the

exhaust

duct

and

vent

hood

must

be freeoflint,

the

lint

filter

must

be clean and

the

dryer

must

not be

overloaded.Ifthese

conditions

are

not

me(~he

dryer

could

cycle on

the

hi-

limit

thermostat

extending

the

dry

time.

It is

for

this

reason

that

we

list

this

as

"marginal"

operation

and

the

maximum

ducting.

ED/GD401 1090

NOTE

No.2

The

figures

for

flexible

duct

apply

only

to

the

flexible

metal duct.

For

other

typesofflexible

ducts,

refertoman-

ufacturer's

design

data

concerning

air

friction

loss.

Friction

1055

in inches

of

water, as

measured

by

a manometer,

should

never

exceed .58"ofwater

column.

SECTION 4. PRE-INSTALLATION CONSIDERATIONS 4-4

LEFT SIDE OR

BASE

EXHAUST

If

dryer

is to be exhausted out

the

left

side

or

through

base, use

the

acces-

sory

304652 exhaust kit,

instructions

are

included

with

the

kit.

o

Nonexhausted

Installations

Always

exhaust

gas

dryerstothe

outside.

NOTE

-------------,

IN

CANADA,

ALL

DRYERS MUST

BE

EXHAUSTED

TO

THE

OUTSIDE.

If the

installer

has

determined

that a

nonexhausted

installation

will

be made,

a 303736 exhaust

deflector

should

be

In,stalled.

Maintain

a

6/1

clearance

between

the

backofthe

control

panel

and

the

wall.

Note: A

dacron

mesh

lint

bag, Part No.

3011353,

is

available

for

use on

nonex-

ED/GD401 1090

hausted installations.

Although

the

lint

screen and

the

lint

bag

will

retain

most

of

the

lint

expelled,

a certain

amount

of

line

will

be

expelled

into

the

laundry
area. AN ACCUMULATION OF LINT
CREATES A FIRE HAZARD. THERE­FORE, FREQUENT CLEANING

OR

VAC-

UUMING

OF

THE

LINT ACCUMULATION

IS NECESSARY.

ADDITIONAL

FACTS

ABOUT

EXHAUSTING

These

large

capacity Maytag

dryers

are

designedtomove

180 cubic feetofair

per

minute. As exhaust

ducting

is

added,itimposes

resistancetothe

flow

of

air

which

must

be

overcome

by

the

dryer

exhaust fan. This resistance is

duetostatic,

velocity

and

dynamic

pressure

which

is expressed in inches

of

water

column

as

measured

by

a

manometer.

There

are

two

typesofpressure

losses:

1.

Staticorfriction

losses

and

2. Velocityordynamic

losses.

Static

or

friction

losses.

(We

will

refer

to

this

as friction.)

Friction losses

are

caused by

the

actual

rubbingofthe

air

molecules

along

the

sides of

the

duct. Pressure losses

in

straight

runsofduct

are

referredtoas

friction

losses. The

pressure

would

drop

duetofriction

losses between

points 1 and 2

of

the

ductinthe

fol-

lowing

drawing.

SECTION 4. PRE-INSTALLATION CONSIDERATIONS 4-5

~_3

_

------_/

Dynamic

losses

result

from

air

turbu-

lence which

occur

when

the

air

flow

changes

direction

or

when

there

is a

change in the cross-section area

of

the

duct.

1.

A change of cross-sectional

area

i5

illustratedinthe

above

drawing.

The

reducer

deceases

the

cross-

sectional

area

which

increases

the

velocity

and

resultsindynamic

pressure

loss. The

amountoffric-

tion

throughareducer

varies

directly

with

the

squareofthe

velocityofair. This

simply

means

that

the

resistance

through

a

reducerisvery

high

as

compared

to

a

straight

run of duct.

Proper

operation

and efficient

dryingisdependent

upon

proper

air

flow. The

dryerisdesigned

for

use

of a

4"

duct

and

reductionsinthe

duct

are

not

recommended.

2..Dynamics

\

Between 2 and 3 in

the

drawing,

a

reducer

has been

addedtothe

duct.

ED/GD401 1090

The

reducer

opposes

the

air

flow·

and sets

up

air

turbulence

which

results in a

pressure

loss.

There

are

many

factors

influencing

air

flow

such as

the

considerations

listed

under

Guide

for

Proper

Exhausting. In

addition

to

these

items,

the

operator's

practices also

affect

air

flow, efficiency

and

the

resulting

drying

times.

A.

Failure

to clean

the

lint

filter

regularly

will

result

in a

reduction

in

air

flow

and

will

cause

the

dryer

to

take

longertodry

the

clothes.

B.

Overloading

restricts

proper

air

flow

through

the

drum

which

will
also decrease efficiency and extend
the

dry

time.

ADJUSTING MAIN BURNER

To

adjust

main

burner

flame,

loosen

screw

holding

air

shutter

and rotate

shutter

until a

yellow

flame appears.

Then reverse

the

rotationofthe

shutter

until

the

yellow

disappears

and

the

burner

has a steady

blue

flame. To

achieve this, it

may

be necessary

to

adjust

the

flame

until

onlyavery

small

yellow

flame is at

the

tipofthe

blue

flame.

Afteraperiodofabout

five

minutes, all

of

the

yellow

should

disap-

pear. If not,

readjust

the

shutter

slightly.

When the

desired

results

are

achieved,

tighten

the

screwtolock

the

shutter

in place.

SECTION4.PRE-INSTALLATION CONSIDERATiONS 4-6

Additionally,a1/8"

N.P.T. (Natural Pipe

Thread)

plugged

tapping,

accessible

for

test gage connection,

must

be installed

immediately

upstreamofthe

gas

supply

connection to

the

dryer.

Refertoyour

local gas

utility

or

plumbing

contractor

should

you

have

questions

on

the

installationofthe

plugged

tapping.

GAS

CONNECTION

AGA Recommends:

DRYER

1/8"

NPT

PLUG

Gas operated

dryers

are

equipped

with

a

burner

orifice

for

operation

on

NATURAL gas. If

the

dryeristo

be

operated on LP gas,

it

must

be con-

verted

correctly

for

safety

and

proper

performance.

Conversion

kits

from

NATURALtoLPG,

or

LPGtoNATURAL

are

available. If

other

conversions

are

required,

check

with

local gas

utility

for

specific

information

concerning

conver-

sion

requirements.

NOTE

-----------,

The

conversion

should

always

be

performed

byaqualified

service

technician.

\'.

A

1/2"

gas

supply

lineisrecommended

and

must

be

reducedtoconnecttothe

3/8"

gas

line

on

the

dryer.

ED/GD401 1090

The

dryer

and its

individual

shutoff

valve

must

be

disconnected

from

the

gas

supply

piping

system

during

any

pressure

testingofthe

system at test

pressures

in excessof1/2 P.S.I.G.

In

other

words,ifthe

test

pressure

is

above

1/2 P.S.I.G.,

disconnect

pipe

for

dryer

before testing pipe. Ifitis less

than 1/2 P.S.I.G.

it's

oktoleave con-

nected

but

shut off

internal

shut-off

valveindryer.

The gas

supply

should

be connected

to

the

dryer

uSing

pipe

joint

compound

or

a Teflon@ tape on

male

thread

con-

nections.

Note:

Any

pipe

joint

compound

used

must

be resistanttothe

actionofany

liquified

petroleum

gas.

Turn on gas

supply

and open

the

shutoffatthe

gas valve. Check all gas

SECTION 4. PRE-INSTALLATION CONSIDERATIONS 4-7

connections

for

leaks

using

a soap

sol-

ution. If

bubbles

occur,

tighten

con-

nections and recheck.

DO

NOT

use

an

open

flametocheck

for

gas

leaks.

Note: As a courtesy,

many

local gas

utilities

will

inspect a gas

appliance

installation. Check with

your

utility

to

seeifthis

service is

providedinyour

area.

GAS

IGNITION

This

dryer

uses an

automatic

ignition

system to

light

the

main

burner

when

the

dryeristurned

on.

ELECTRICAL REQUIREMENTS

OBSERVE

ALL

NA

TlONAL

ELECTRICAL

CODES

AND

LOCAL

CODES

AND

ORDINANCES

ELECTRICAL SERVICE --

GAS

MODELS

120 VOL

TS,

60

HZ

ONL

Y

A 120

volt,

60 Hz,

15

ampere

fused

electrical

supplyisrequired.

An

indi-

vidual

branch

(or

separate)

circuit

serving

only

this

applianceisrecom-

mended.

DO

NOT

USE

AN EXTENSION

CORD unless

it

meets all

requirements

as

outlined

for

grounding,

polarizing

(3-wire) and capacity. Wire size

should

\

be

afleast

No. 14.

BEFORE PLUGGING IN POWER

~ORD,

OPERATION, OR TESTING,

follow

grounding

instructionsInGrounding

Section.

ED/GD401 1090

GROUNDING -- 120 VOLTS, 60

HZ

IMPORTANT

SAFETY PRECAUTIONS

Warning:

To

prevent

unnecessary

risk

of

fire, electrical

shockorpersonal

injury,

all

wiring

and

grounding

must

be

doneinaccordance

with

the

National Electrical

Code

and local

codes and

ordinances.

It is

the

per-

sonal

responsibility

and

obligation

of

the

appliance

ownertoprovide

ade-

quate electrical

service

for

this

appli-

ance.

ELECTRICAL

GROUND

IS REQUIRED

ON THIS

APPLIANCE

This

applianceisequipped

with

a

power

supply

cord

havinga3-prong

grounding

plug.

For

your

safety,

this

cord

must

be

plugged

into a

mating

3-prong

type

wall receptacle which is

properly

Wired,

grounded

and

polarized.

Ifamating

wall

receptacleisnot

avail-

able, contact a

qualified

electrician

to

SECTION 4. PRE-INSTALLATION CONSIDERATIONS 4-8

have

the

wall receptacle replaced. If

thereisany

question, local

building

officialsorelectrical

utility

should

also

be consulted.

WARNING

----------,

DO

NOT UNDER ANY CIRCUM­STANCES, REMOVE THE ROUND
GROUNDING PRONG FROM POWER
SUPPLY CORD.

ADDITIONAL

GROUND PROCEDURE --

WHERE

LOCAL

CODE PERMITS

An external

ground

wire,

clamp

and

screws

are

provided

for

assistance

in

meeting local codes. Where

approved,

itisrecommended

this

additional

ground

be installed. A

proper

external

ground

MUST be

determined

prior

to

wire

hookup.

Consult

local

building

officials and

qualified

electrician

in the

event

any

questions

exist.

WARNING

----------,

ALL

GROUNDING AND WIRING

MUST BE DONE

IN

ACCORDANCE

WITH NATIONAL AND LOCAL

CODES.

U.S. MODELS

The

National

Electrical

Code

ANSIINFPA, NO. 70,

Latest

Revision

and

local

codes

and

ordinances.

1

GROUND

SCREW

CLAMP

WIRE

CANADIAN

MODELS

The

Canadian

Electrical

Code

C.22.1

Part 1

and

Local

Codes.

ELECTRIC MODELS

UNITED STATES ONLY

Electric

models

are

equipped

with

a

ground

strap

for

grounding

the

dryer,

which is connectedatthe

factorytothe

P2

terminal

post. To

avoid

the

possi-

bilityofelectrical shock,

the

dryer

must

ED/GD401 1090

SECTION4.PRE-INSTALLATION CONSIDERATIONS 4-9

not be connectedtoa 120

volt

2-wire

circuit.

The use

of

the

ground

strap is per-

mitted by

the

national electrical code;

however,

if

useofthe

ground

strap

is

prohibited

by

local codes,

the

dryer

must

be

groundedinaccordance

with

local codes.

ELECTRICAL CONNECTIONS

GAS

MODELS

May

tag gas operated

dryers

are

des~gried

for

operation

on 120 volt, 60

Hz

AG

approved

electrical service,

pro-

tected by a

15

amp

fuseorcomparable

circuit

breaker.

ED/GD401 1090

On gas- models,

the

electrical

power

cord

comes

already

attachedtothe

dryer.

Plug

the

power

cord

into

a

nearby

120volt,

3-prong

properly

wired

grounded

receptacle.

ELECTRIC MODELS
Canadian

Models

- 120/240

Volt

ALL

CANADIAN MODELS ARE

SHIPPED WITH

THE

POWER CORD

ATTACHED.

The

dryer

power

cord

should

be

plugged

into a 30

amp

receptacle and

fused

through

a 30

amp

fuse on both

sidesofthe

line.·

NOTE

-----------,

It is not

permissibletoconvert

a

dryerinCanada to 208 volts.

SECTION4.PRE-INSTALLATION CONSIDERATIONS 4-10

U.S.

Models

- 120/240

volt

or

120/208

volt

May

tag

electric

dryers

are

manufac-

turedtooperate

on 120/240 volt, 60 Hz

AC

approved

electrical service. Should

the

dryer

be operated on a 208

volt

electrical system,

the

dryer

must

be
converted. A heating element kit is
available, Part No. 304837,

which

is

used

to

convert

the

dryer

from

240

volt

to

a 208

volt

system.

The

circuit

should

be fused

through

a

30

amp

fuse

or

comparable

circuit

breaker, on both

sidesofthe

line. The

service

cord

receptacle

should

be

wired

with

no

smaller

than

a No.

10
wire

and be

sureastrain

relief

is used.

2.

The neutral

lineofthe

service

cord

must

always be connected to

the

P2

service

post. The two 120

volt

lines

of

the

service

cord

then gotothe

P1

and

P3

terminal

block

posts

as

shown.

120V

N.

120V

Note: The

service

cordisnot

provided

w-lth

electric

model

dryers.

Connect

the

power

cord

as

follows:

1.

Remove

the

terminal

block

cover

plate on

the

back

panelofthe

dryer

to

gain

accesstothe

terminal

block.

ED/GD401 1090

3.

Be

sure

terminal

block

nuts

are

tight

and replace

terminal

block

cover.

4.

Plug

power

cord

into receptacle.

SECTION 4. PRE-INSTALLATION CONSIDERATIONS

4-11

ADDITIONAL INFORMATION

MOBILE

HOME

INSTALLATION

ALCOVE

OR CLOSET INSTALLATlON

When

the

dryeristo

be

installed

in an

alcove

areaora closet, clearance

should

be

provided

around

the

dryer

for

an

adequate

air

supply

and

for

ease

of

installation

and

servicing.

Clear-

ances

for

the

companion

automatic

washer

should

also be

considered.

An

appliance

installedina closet shall

have no

other

fuel

burning

appliance

installed in

the

same closet. The

dryer

must be exhaustedtothe

outside

to

minimize

excessive

lint

accumulation

andtomaintain

good

drying.

We

recommend

allowance

for

more

clear-

ance than

the

minimum

installation

clearances as shown.

Make

Up

Air Openings.

Each

opening

area

must

have a

minimumof36

square

inches (

more

is

better). These

openings

must

not

be

obstructed. (Louvered

door

with

equiv-

alent

air

opening

is acceptable.)

May

tag

dryers

are

certified

by

the

American

Gas

Association

and

bearing

a label stating

they

are

suitable

for

installationinmobile

homes. When

installedinmobile

homes,

the

installa-

tion

must

conformtothe

Manufactured

Home

Construction

and

Safety

Standard

Title 24 CRF, Part 32-80.

When

installingadryer

in a

mobile

home,

provisions

for

anchoring

the

dryer

should

be made. An

anchor

bracket

kit is available, Part No. 303740.

Instructions

for

installing

the

anchor

brackets

are

containedineach kit.

All

mobile

home

installations

must

be

exhausted

to

the

outside

with

the

exhaust

duct

termination

securely

fas-

tenedtothe

mobile

home

structure,

using

materials

that

will

not

support

combustion.

Exhaust

the

dryer

using

flexible

metal

exhausting

materials, and

locate

in

an

area

that

provides

ade-

quate

make-up

air.

The exhaust

duct

may

not

terminate

beneath

the

mobile

home.

With a gas

dryer,toprevent

the

possi-

bilityofhazard

duetoelectrical shock,

never

plug

dryer

electric

cord

into

a

receptacle

whichisnot

adequately

grounded

andinaccordance

with

local

and

national codes. See

installation

instructions

with

dryer.

PERSONAL SAFETY
PRECAUTIONS

MAKEUPAIR

OPENINGS

•

FRONT

VIEW

CL~~l~

CD

""

36"

'---

-,

17"

rt

• B D9 @

-l

i-O·

D

36"

v·

0'1-- -

o·

/

4

-i

1-2-

IDE VIEW

,

ED/GD401 1090 SECTION 4. PRE-INSTALLATION CONSIDERATIONS 4-12

Electrical

dryers

with

a UL

symbol

on

the

data

plate

have

been

listed

with

Underwriters'

Laboratories,

Inc.;

those

with a CSA

symbol

on

the

data

plate

have been listed

with

Canadian Stand-

ards

Association. Gas

dryers

with an

A.G.A.

symbol

on

the

data

plate have

been listed

with

The

American

Gas

Association;

those

with a CGA

symbol

on

the

data

plate have been listed

with

the

Canadian Gas Association. Never-

theless, as

with

any

equipment

using

electrical and

moving

parts,

there

is a

potential hazard. To use

this

appliance

safely,

the

operator

should

become

familiar

with

the

instructions

for

opera-

tionofthe

dryer

and

always

exercise

care

while

using

the

appliance.

1.

To

avoid

possibilityoffireorexplo-

sion:
A. Items

containing

foam

rubber

(may also be labeled

Latex

foam)

or

foam

rubber-like

materials

must not

be

dried

on a heat setting. Foam

rubber

materials,

when heated, can

under

certain

circumstances

produce

fire

by

spontaneous

com-

bustion.
B.

Any

material

on

which

you

have

used a

cleaning

solvent,

or

which is saturated with

flammable

liquids

or

solids,

should

not be

placed in

the

dryer

until

all traces

of

these

flammable

liquids

or

solids

and

their

fumes have been removed.

There

are

many

highly

flammable
items used in homes, such as:
acetone,

denatured

alcohol,

gaso-

line, kerosene,

some

liquid

house-

hold

cleaners,

some

spot

removers,

turpentine,

waxes

and

wax

removers.

ED/GD4011090

2. CHILDREN SHOULD NEVER BE PER­MITTED

TO

OPERATE, OR PLAY IN,

WITH OR AROUND THIS DRYER.

SECTION4.PRE-INSTALLATION CONSIDERATIONS 4-13

\

....

ED/GD401 1090

SECTION 4. PRE-INSTALLATION CONSIDERATIONS

4-14

SECTION

5.

GENERAL INFORMATION

,

GENERAL SPECIFICATIONS

DIMENSIONS

Height

to

topofcontrol

cover

43-5/8" - 110.8 cm

Height

to

topofcabinet

36" - 91.4 cm

Width

28

112"

- 72.4 cm

Depth (including 1 1/2"

over-

27" -

68.6

cm

hang)

CAPACITY

A full

washer

load is a full

dryer

load.

MOTOR

Thermoprotected

automatic

1/2

HP,

115V,60

HZ.

motor.

AIR FLOW

Per minute exhausted from

180 cu.

ft.

dryer.

DRUM

SPEED

47

RPM

ROTATION

Clockwise when viewed from

the front.

HEAT SOURCE

ELECTRIC - 240 Volts

GAS

1.

Single

port

valve - capable of

pro-

viding

22,000 BTU.

2\

Direct

ignition

by

igniter

bar.

3.

The

circuit

should be fused with a

15

amp

fuseorcomparable circuit

breaker.

Maximum

draw

is 6 amps.

ED/GD401 1090

1.

Nichrome

helix

coil rated at 5300

watts aL240 volts, AC.

2.

Total wattage -

including

drive

motor

- 5600.

3.

The circuit should be fused with a 30
amp fuse

or

comparable

circuit

breaker

on both sidesofthe line.

Maximum

draw

is 25 amps.

SECTION 5. GENERAL INFORMATION 5-1

MODEL CHART

DRYERS OF THE 1990 LINE

MODELS CONTROL TYPE

HEAT CYCLE

PRESS

DRUM DAMP

WRINKLE

AIR

SETTING

SIGNAL

CARE

LIGHT

DRY RELEASE FLUFF

09900

ELEC

& TIME 5 ADJUST OPT

X

X X

99

09800

E

ELEC

& TIME

3 ADJUST

OPT

X

X X

20

09700

E

ELEC

& TIME 3

X

OPT

- X

X

20

08600

E AUTO & TIME 2 X OPT

-

X X

15

08500 AUTO & TIME 3 X

OPT

- X X

15

08420

E

AUTO

& TIME 2

X X

-

X X 20

08410

AUTO & TIME 1

X X

-

X X

20

08300

AUTO & TIME 2

X -

X X

15

08200 AUTO ONLY 2

X

-

-

-

25

08000

E

AUTO ONLY

1

X -

-

-

- 25

07800

E AUTO & TIME 3 X X - X X 20

07600

E

AUTO

& TIME

3 X

-

- X

X

15

07500 AUTO ONLY 2 X

X

- -

60

07400

TIME DRY 2

- -

-

X X 20

05910

AUTO & TIME 3

X

OPT

-

X X

15

04910 AUTO & TIME 2 X

-

-

X X

15

04000

AUTO ONLY 1

X

-

- -

-

25

Abbreviation

Description

E

Canadian Model in Electric Only

OPT

Optional Press Care Feature

EDfGD401 1090

SECTION5.GENERAL INFORMATION

5-2

SCHEMATICS

ELECTRIC MODELS PAGE NUMBER GAS MODELS

PAGE NUMBER

DE9900 5-4 DG9900

5-5

DE9900 (Canada)

5-32

DE9800

5-6

DG9800 5-7

DE9800

(Canada)

5-33

DE9700

5-8

DG9700 5-9

DE9700

(Canada)

5-34

DE8600 5-10 DG8600

5-11

DE8600

(Canada)

5-35

DE8500 5-12 DG8500

5-13

DE8420

5-14 DG8420

5-15

DE8420

(Canada)

5-36

DE8410

.5-16

DG8410 5-17

DE8410

(Canada)

5-37
DE8300 5-18 DG8300 5-19
DE8200 5-20

DG8200

5-21

DE8200

(Canada)

5-38

DE8000

5-22 DG8000 5-23

DE8000

(Canada)

5-39

DE7800

5-24 DG7800

5-25
DE7800 (Canada) 5-40
DE7600 5-26 DG7600

5-27
DE7600

(Canada)

5-41

DE7500 5-28 DG7500

5-29
DE7500

(Canada)

5-42

DE7400 5-30 DG7400

5-31

DE7400

(Canada)

5-43

DE5910 5-12 DG5910 5-13

,,DE4910

5-18 DG4910 5-19

,

DE4000 5-22 DG4000

5-23

DE4000

(Canada)

5-39

ED/GD401 1090

SECTION5,GENERAL INFORMATION 5-3

HEATER

RELAY

YL

BK

/~

I

I

\

,

HI-LIMIT'

TH'ST

----I

I
I

I

1

I

1

51
TI
AI

RI

T1

I

I

I

I

I

: HEATER"

I BK

THERMAL

160

0

(~

LIMIT"
TH'ST

R-

BK

r---

OVERLOAD

I (

PROTECTOR

t-

\

1 '

I
I

I

IR

IU
IN

I

I
I

I

MOTOR

RELAY

R-BK

INTERIOR

LAMP

THERMAL

FUSE

(HEATER)

MICROPROCESSOR

CONTROL

CONNECTOR

AA

236

GY

R-

BK

RD

DOOR

SWITCH

/'--',

OPEN

GY

WH

i I

RD

\,,_-lI,,""COLO...::S"'"EO--------

LINT

FILTER

SWITCH

I

............

-~

, I

\

.....

__

....

/

R-BK

TRANSFORMER

THERMISTOR

00

0000000

3

II

CONNECTOR

BB

MICROPROCESSOR

CENT:

,.+.....

L2

CONTROL

SWITCH:

:

==---

--=B:..::....U

cl---...-I

:

: .

r--.

I

L

....

L1

DRYNESS
SENSOR

14

W-BK

13

W-BK

12

BR

s:

BR

0

II

PK-BK

:::0

10

008

PK-BK

o

IJZ

9

z

:::o~

0

-l0(")

Y-BK

:::0

O-i

7

0[110

Y-BK

r ::0

6

(fl(")

W-OR

(fl(")

5

0

W-OR

:::0

4

3

BU

2

PK

1

PK

22.6V

1

L

___

N

W-BR

160

0

LIMIT
TH'ST

HI~LIMIT

TH'ST

HEATER

W-BR

55

HEATER

RELAY

DE9900

GY

31

BK

37

W-BU

10

RD

35

GY

THERMAL

34

FUSE

(HEATER)

RD

17

THERMAL

DOOR

FUSE

SWITCH

W-BU

9

THERMISTOR

R-

BK

20

3 II

R-BK

21

CONNECTOR

BB

MICROPROCESSOR CONTROL

ELECTRICAL

WIRING

DIAGRAM

WH

29

ELECTRICAL

SCHEMATIC

DRYNESS LINT FILTER
SENSOR

SWITCH

TERMINAL
BLOCK

R-BK

32

R-BK

39

BU

28

W-BR

14

BK

37

LI~N \

L2

GROUND

STRAP

14

W-BK

44

W-BK

43

s:

13

BR

53

0(")

12

BR

52

:::00

II

PK-BK

19

OOZ

10

PK-BK

18

OIJ~

9

Z:::o(")

Y-BK

7

-l0-i

7

:::OO~

6

Y-BK

6

0[11

5

W-OR

5

r(flg

4

W-OR

4

(fl

3

BU 3

0

PK 2

:::0

2

PK I

I

ED/GD401 1090

SECTION5.GENERAL INFORMATION

5-4

RD

HI-LIMIT

/

TH'ST

(

\

~

....

RADIANT

SENSOR

3

II

o

0000000

MICROPROCESSOR

CONTROL

CONNECTOR

BB

GY

---,

'"

........

---l

OVERLOAD

\ ) I

PROTECTOR

- I

I
I

51

TI

AI

RI

T:

I

I

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BU

I I

~

I

BK

I I

---4..-k,.....,.:B"'U-o--

......

;1

--b-="---'--°L-_-_-_-_-_-' J

I I

CENT

GAS

VALVE

I I ISWITCH

L__.:.

J

R-"

.........

'"-l

BK

MICROPROCESSOR

CONTROL

CONNECTOR AA

2 3

BK

160

0

,,~

LIMIT

(

-+

-"-"'

-+

----'

TH'ST\

~

~

....

W-BR

DOOR

SWITCH

LINT

FILTER

SWITCH

/

..

--~

I I

\.. '

....

_~

ELEC

TRICAL

SC

HEMATI

C

~-

....

,

....

I \

THERMISTOR

R-BK

I
I

RD

I

I

I
I

ITRANSFORMER

I

I

I

I
I

R-

l

___

-

I

BK

INTERIOR

LAMP

DRYNESS
SENSOR

L1

14

W-BK

13

W-BK

12

BR

II

BR

s:::

10

PK-BK

0

::UN

9

PK-BK

OO~

0-0

z

0

z:::o~

7

Y-BK

-10-;

::u

00

6

Y-BK

o rrJ:ll

r

(f)

° 5

W-OR

(f)0

4

W-OR

0

::u

3

BU

2

PK

1

PK

N

GND

~

DG9900

RADIANT
SENSOR

IGNITER

HI-LIMIT

TH'ST

160

0

LIMIT

TH'ST

RD

17

BK

13

R-BK

20

GAS

VALVE

GY

51

THERMAL

GY

FUSE

50

R-BK

30

THERMISTOR

W-BR

40

GY

12

DOOR

SWITCH

INTERIOR

LAMP

DRYNESS

SENSOR

NEUTRAL

LINE

IDENTifiED8Y.015

TRACER

AND

TIN

PLATED

TERMINAL

~~7-

-.TRANSFORMER

~----------'-'--=-~

POWER

CORD

14

W-BK

44

s:::

13

W-BK

43

0

o

12

BR

53

::uo

II

BR

52

OOZ

10

PK-BK

19

0-0

iii

9

PK-BK

18

Z::uo

-10-;

7

Y-BK

7

::UO~

Y-BK

6

OrrJ

6

W-OR 5

r(f)g

5

W-OR 4

(f)

4

BU

3

0

3

::u

2

PK

2

I

PK

I

ELECTRICAL

WIRING

DIAGRAM

ED/GD401 1090

SECTION 5. GENERAL INFORMATION

5-5

BU

--,

CYCLING

\

TH'ST

J

I

"

,

\

,

I

I

"HEATING

BK

ELEMENT

W-

RD

YL

®

DRYNESS

SWITCH

W-RD

DE9800

01

15M

15M

IBM

lOOK

CAPACITOR

I \

W-BU

'--'

1"'"

1M

CIRCUIT

BOARD

LD-

LESS

DRY

ND-

NORMAL

DRY

MO-

MORE

DRY

RELAY

SWITCH

SELECTOR

SWITCH

CODES

DEL-

DELICATE

MED-

MEDIUM

REG-

REGULAR

YL

BUZZER

r-

__

----.r--14..:.0::3~::r_---._-U---_::_9

I

OR

GY

RELAY

SWITCH

ELECTRICAL

SCHEMATIC

FUNCTION

TIMER MOTOR

•

'ON'5SECONDS

EVERY5MINUTES

BUZZER/PULSER

•

HEATER

ELECTRONIC CONTROL

DISABLE

DRIVE MOTOR

HEATER

YL-OR

OVERLOAD

-,--

PROTECTOR

1""-/

I ,
I

'

I

I

I

IR
IU
IN
I

I

I

I

RDI

®

WB-BR

®

YL-BU

@

YL-YB

@

BK-GY

o

WB-RD

CAM

CIRCUITS

NO.

R-

BK

THERMAL

FUSE

(HEATERJ,.._,

I

,

....

_/

CAM

INFORMATION

AND

CONTACT

DATA

DOOR

SWITCH

GY

GND

~

N

/OPEN

\

-VM,P---

)

YL

'\,CL/

'--

L2

Ll

ELECTRICAL

WIRING

DIAGRAM

HI-LIMIT

TH'ST

C

A

p

A

C

I

T

o

R

I

BR40 2 E C

3

DO

4 G N

PK27 5 E N

r-~W:::----;R:::D";-4:-5

----16

B E

_

47

7 0 C

r--~~=-j8

A T

O-BK9

9 R 0

BK3510D R

WH21

Ii

12

SENSOR

GN

~

DRYNESS

SWITCH

RELAY

TERMINAL
BLOCK

L1~

N

\L2

GROUND
STRAP

ED/GD401 1090

SECTION 5. GENERAL INFORMATION

5-6

DG9800

D

BU

--,

CYCLING

"TH'ST

J

/1

W-

RD

YL

0

DRYNESS

SWITCH

W-

RD

:

/-,

HI-LIMIT

Il::\

ill

I (

TH'ST

lea::

1\

L J \

....

BR TEMP

SWITCH

W-RD

W-BV

I

SENSOR

? RADIANT

~

SENSOR

"'--o~~--{}.,

CIRCUIT

BOARD

LD-

LESS

DRY

ND-

NORMALDRY

MD-

MORE

DRY

r=-

0-3-

RELAY
SWITCH

DEL-

DELICATE

MED-

MEDIUM

REG-

REGULAR

GY

o-rlI~~--I

BK

YL

BUZZER

W-

BK

I
I

I I I

L J

CENT SWITCH

FUNCTION

TIMER MOTOR

DRIVE MOTOR

BUZZER/PULSER

•

•

'ON'5SECONOS

EVERY5MINUTES

HEATER

HEATER

ELECTRONIC CONTROL DISABLE

@

YL-OR

I /

OVERLOAD

..J..-.--J

PROTECTOR

I \
I

'

I

I

I

IR

IV

IN

I

I
I

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RDI

GY

®

WB-BR

@

BK-GY

®

YL-BU

@

YL-YB

Q)

WB-RD

GY

TIMER

THERMAL

MOT0R..-_

R-

FUSE 1--' / '\

BK INTERIOR

I,)

\ )

LIGHT

GY

CAM

CIRCUITS

NO.

CAM

INFORMATION

AND

CONTACT DATA

/OPEN-

\

\ I

YL

',':t..-.~/::~==I------t'-~~~---;:==========:::::----Id

RELAY

SELECTOR

SWITCH

CODES

BK

SWITCH

DOOR

SWITCH

GY

N

GND

-=:L

Ll

ELECTRICAL

SCHEMATIC

r------------,

PUSH

TO

START

SWITCH

LI

POWER

CORD

N

G

WH

42

W-

BK

I

RELAY

SENSOR

GN

~

DRYNESS

SWI·TCH

O-BK9

I

C

BR40

2 E C

A

3 D 0

P

4 G N
5 E N

A

PK27

6 B E

C

W-RD45

7 0 C

I

W-

47

8 A T

T

O-BK9

9 R 0

0

BK35

10

D R

R

WH21

II

12

ED/GD401 1090

SECTION 5. GENERAL INFORMATION

5-7

BU

--

....

CYCLING

\TH'ST

J

/

..-

YL ®

W-

RD

TIME

DRY

DRYNESS

SWITCH

W-RD

DI

15M

IBM

lOOK

PERM

PRESS

'III

PRESS

CARE

1M

CIRCUIT

15M

BOARD

o

PERM

0

~

PRESS

~

REG

BUZZER/PULSER

•

•

'ON'5SECONDS

EVERY5MINUTES

Y-BK

~

~

BUZZER

..--

__

,I"..--1oI-..:

D

:;3

__

-_-,-

.,...---JI--_'=:O

I

TIMER MOTOR

HEATER

HEATER

DRIVE MOTOR

ELEC-TRONIC CONTROL DISABLE

YL-OR

I /

OVERLOAD

.J--I

PRO

TECTOR

I \

I "
I

I

I
IR

IU

IN
I

I

I

I

RDI

®

YL-BU

@

YL-YB

®

WB-BR

@

BK-GY

CD

WB-RD

CAM

INFORMATION

AND

CONTACT

DATA

CAM

CIRCUITS

FUNCTION

NO.

r

CAPACITOR

(,)

!W::~SOR

¥T"

BK

DOOR:

RELAY

SWITCH I I

SWITCH

'\

N

I/O~N~

tENT-smTC~

7)

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...

/~Id.y:.:LL-'=f======t!=;;;~==;~~~~~~~~~;=~------l--~

"-~EA

T I

NG

L2

,--'

RELAY

BK

ELEMENT

SWITCH

SELECTOR

SWITCH

CODES

DEL-

DELICATE

LD-

LESS

DRY

MED-

MEDIUM

ND-

NORMAL

DRY

REG-

REGULAR

MD-

MORE

DRY

GND

~

L1

ELECTRICAL

SCHEMATIC

DE9700

ELECTRICAL

WIRING

DIAGRAM

C

A

P

A

C

I

T

o

R

HI-LIMIT

TH'ST

SENSOR

I

GN

2

.---

BR40

E C

-L

3

DO

DRYNESS

4 G N

S

WIT

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o

BK9

8 A T

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9 R 0

BK35

10

D R

WH21

II

12

RELAY

PUSH

TO

START

SWITCH

THERMAL

FUSE

(HEATER)

BK

33

BR

32

y-

o BK

9,.

TERMINAL

BLOCK

LI~N \

L2

GROUND
STRAP

ED/GD401 1090

SECTION

5.

GENERAL INFORMATION

5-8

CAM

INFORMATION

AND

CONTACT

DATA

DG9700

LD-

LESS

DRY

ND-

NORMAL

DRY

MD-

MORE

DRY

RELAY

SWITCH

SELECTOR

SWITCH

CODES

IJ""""'D~3-

YL 0

~

IBM

BU

RELAY

DRYNESS

W-

J

SWITCH

BR

CIRCUIT

15M

BOARD

W-RD

15M

--,

CYCLING

"TH'ST

J

/

I

DI

lOOK

TH'ST

1M

BR

TEMP

SWITCH

DEL-

DELICATE

MED-

MEDIUM

REG-

REGULAR

OR

GY

RELAY

SWI

TCH

O_rl14-~-

BK

FUNCTION

TIMER MOTOR

•

'ON'5SECONDS

EVERY5MINUTES

Y-BK

~

YL

~

YL

BUZZER

BUZZER/PULSER

•

HEATER

ELECTRONIC CONTROL DISABLE

HEATER

DRIVE MOTOR

I
I

I
I BK

I I

,"",",--.r---.c

I

I I I

L J

CENT

SWITCH

YL-OR

I I

OVERLOAD

J..--J

PROTECTOR

I \

I '

I

I

I

IR

IU

IN

I

I

I

I

ROI

®

WB-BR

®

YL-BU

@

YL-YB

CD

WB-RD

@

BK-GY

CAM

CIRCUITS

NO.

DOOR

SWITCH

N

/OPEN-~

~-u+"\~

I

YL

,CL/

'--

GND

~

L1

ELECTRICAL

SCHEMATIC

~------------,

C

A

P

A

C

I

T

o

R

BR40

I

2 E C

3 D 0

W-BU32

4 G N

PK27

5 E N

r--W----=R""'O""45:-------i6

B E

~-+--...!!..:"-'-""-"-----i

7 a c

~--:I!.W:::J-

;m.:u7-i 8 A T

r-_--'O~-:.;;B:':K:"-9

--\9

R 0

r---=B",K",,3

5";,-;-i1

a D R

WH21

II

12

SENSOR

GN

~

DRYNESS

SWITCH

PUSH

TO

START

SWITCH

RELAY

G

N

LI

POWER

CORD

ED/GD401 1090

SECrlON5.GENERAL INFORMATION

5-9

L1

CAM

INFORMATION

AND

CONTACT

DATA

AUTO

I

PRESS

I~I

AUTO

I0I

I~

l8ITlCT

FUNCTION

REG

F

TIME

DRY

III.

CIRCUITS

PERM

PRESS

CARE

F

F

@

YB

BR

DRIVE

MOTOR

@i

GY

BR I

PRESS

CARE

I

W:

YB

OR1TIMER

MOTOR

I

G)YL

BU I

HEATER

~

I

01

YL

BK I

BUZZER/HEATER

-

4/\YL-RD\BUZZER/PULSER

*

I I

* 'ON' 5

SECONDS

EVERY5MINUTES

\

W-RD

r---

I I

:to

..J:

TEMP

:~

0

iSWI

TCH

I I

,-__-.J

BK

W-RD

BK

DE8600

HI-LIMIT

TH'ST

CYCLING

/

TH'ST

"

\

\ .

1-

.:.:

YL

=6

BU

HEATER

RD

OR

RD

THERMAL

FUSE

GY

(HEATER)~~G~YOh~~YL~

THERMAL

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