Kenmore W10035270 Tech Manual

TECH SHEET - DO NOT DISCARD PAGE 1

WARNING

Electrical Shock Hazard

Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or

electrical shock.

IMPORTANT

Electrostatic Discharge (ESD) Sensitive

Electronics

ESD problems are present everywhere. ESD may damage or
weaken the machine control electronics. The new control
assembly may appear to work well after repair is finished, but
failure may occur at a later date due to ESD stress.

Use an anti-static wrist strap. Connect wrist strap to green

■

ground connection point or unpainted metal in the
appliance

Touch your finger repeatedly to a green ground connection
point or unpainted metal in the appliance.

Before removing the part from its package, touch the

■

anti-static bag to a green ground connection point or
unpainted metal in the appliance.

Avoid touching electronic parts or terminal contacts;

■

handle machine control electronics by edges only.

When repackaging failed machine control electronics in

■

anti-static bag, observe above instructions.

-OR-

ACTIVATING THE DIAGNOSTIC TEST MODE

1. Be sure the dryer is in standby mode (plugged in with all
indicators off, or with only the Clothes Dry indicator on).

2. Select any one button (except Stop) and follow the steps below,
using the same button (remember the button):

Press/hold

2-5 seconds

3. If this test mode has been entered successfully, all indicators on
the console are illuminated for 5 seconds with
Estimated Time Remaining two-digit display.

DIAGNOSTIC: Unsuccessful Entry

If entry into diagnostic mode is unsuccessful, press the Stop button
twice, then press the Power button.

If indicators come on, try to use a different button than was used to

➔

activate the diagnostic test mode. If that button fails to enter the
diagnostic mode, something is faulty, and it is not possible to enter
the diagnostic mode. Go to TEST #2, page 7.

If no indicators come on after pressing the Power button, go to

➔

TEST #1, page 6.

DIAGNOSTIC: Saved Fault Codes

If there are saved fault codes, the most recent fault code will
alternately show “F-” and “XX” where XX is the fault code.

Press and release

the same button

used to activate

Diagnostics

Repeat
Repeat
Repeat

Release for

➔

2-5 seconds

Press/hold

➔

2-5 seconds

Release for

➔

2-5 seconds

➔

88 showing in the

➔

beep tone➔Second most recent fault code is displayed.

➔

beep tone➔Third most recent fault code is displayed.

➔

beep tone➔Fourth most recent fault code is displayed.

➔

All indicators momentarily turn off, then stay on.

Press/hold

2-5 seconds

DIAGNOSTIC GUIDE

Before servicing, check the following:

■

Make sure there is power at the wall outlet.

■

Has a household fuse blown or circuit breaker tripped? Time delay
fuse?

■

Is dryer vent properly installed and clear of lint or obstructions?

■

All tests/checks should be made with a VOM
(volt-ohm-milliammeter) or DVM (digital-voltmeter) having a
sensitivity of 20,000 ohms per volt DC or greater.

■

Check all connections before replacing components. Look for
broken or loose wires, failed terminals, or wires not pressed into
connectors far enough.

■

A potential cause of a control not functioning is corrosion on
connections. Observe connections and check for continuity with an
ohmmeter.

■

Connectors: Look at top of connector. Check for broken or loose
wires. Check for wires not pressed into connector far enough to
engage metal barbs.

■

Resistance checks must be made with dryer unplugged or power
disconnected.

DIAGNOSTIC TESTS

These tests allow factory or service personnel to test and verify all
inputs to the machine control electronics. You may want to do a
quick and overall checkup of the dryer with these tests before going
to specific troubleshooting tests.

DIAGNOSTIC: Console Buttons and Indicators

Pressing the console buttons or rotating the cycle selector will sound
a beep and will turn on or off the corresponding indicators as shown

Figure 1, Console Diagnostics, page 2. Pressing

in
will sound a beep and turn the left digit of the display on or off.
Pressing
the display on or off.

∨ (less time) will sound a beep and turn the right digit of

➔

If indicators fail to turn on or off and beep after pressing
buttons or rotating the cycle selector, go to TEST #6, page 10.

∧ (more time)

DIAGNOSTIC: Door Switch

Opening the door should cause a beep and an alphanumeric number
to be displayed. Closing the door should cause a beep and
displayed.

➔

If opening the door fails to cause a beep and a number and letter
to be displayed, go to TEST #7, page 10.

88 to be

DIAGNOSTIC: Moisture Sensor

Open the door and locate two metal strips on the face of the lint
screen housing. Bridge these strips with a wet cloth or a finger.

➔

If a continuous beep tone is heard and an alphanumeric number is
displayed on the console, the sensor is OK.

➔

If not, or if a continuous beep tone is heard before bridging the
moisture strips, go to TEST #5, page 10.

DIAGNOSTIC: Motor, Heater, and Console ID

Close the door. Press the Start button. The motor and heater will turn
on, and the display will show one of the following console IDs:

A0, A2, A6, A7, A8, A9, or AA.

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 2

Power button controls Status

indicators at left.

“ Time” turns the

“More Time” button turns the

left digit of the display on or off.

Figure 1.

If none of the Console IDs above are displayed, replace the

➔

Console Diagnostics.

Less button

t digit of the display on or off.

righ

Rotating knob turns

indicators on or off.

Tu rns off all indicators and

exits diagnostic mode.

user interface assembly. See Accessing & Removing the
Electronic Assemblies, page 11.

If the motor does not turn on, go to TEST #3a, page 7.

➔
➔ If no heat is detected, go to TEST #4, page 8.

DIAGNOSTIC: Displaying Inlet Air Flow

Used to display the airflow value at the inlet of the heater box being
measured by the machine control.

After all saved fault codes have been displayed, press the Wrinkle
Guard button to activate airflow detection. A 30 or 50 second
countdown timer will start and the dryer will turn on.

➔ If the dryer is cold, the countdown will start at 50 seconds.

NOTE: If the dryer is extremely cold (less than 40°F [4.4°C]) the
airflow may not be detected properly, and “--” will be displayed.

➔

If the dryer is hot, the countdown timer will start at 30 seconds
(cool down period) followed by an additional 50 second
countdown.

A Dryness Level modifier LED will also be illuminated to indicate the
airflow range corresponding to the number displayed.

■

The More LED will be illuminated for airflow readings above 40 cfm.

■

The Normal LED will be illuminated for airflow readings between
29 and 40 cfm.

■

The Less LED will be illuminated for airflow readings less than
29 cfm.

➔

If airflow value is low, check to make sure the lint screen is
clean, the door seal is in place and the vent is not obstructed.

Start button turns on dryer.

Dryness Level

button controls

all indicators

above button.

The Less LED will be illuminated for low voltage readings (below

■

Te mperature

button controls

all indicators

above button.

Each button controls

its own indicators.

200 VAC).

If the line voltage is not seen on L2 the display will flash

➔

Go to TEST #1, page 6.

DEACTIVATING THE DIAGNOSTIC TEST MODE

Press the Stop button twice to exit diagnostics.

ACTIVATING THE MANUAL LOAD TEST

1. Be sure the dryer is in standby mode (plugged in with all
indicators off, or with only the Clothes Dry indicator on).

2. Select any one button (except Stop) and follow the steps below,
using the same button (remember the button):

Press/
hold 2-5
seconds

➔

seconds

Release

for 2-5

➔

hold 2-5
seconds

Press/

➔

Release

for 2-5

seconds

➔

hold 2-5
seconds

Press/

➔

seconds

Release

for 2-5

88 flashes momentarily, the motor starts right away, and the Heavy

Duty LED flashes (this step starts the Manual Load sequence):

1. Turn on motor.

Now press any key (except Stop) and the control will advance
through each step of the following sequence:

SINGLE ELEMENT MODELS:

2. Motor + heater.

3. No loads on (motor + heater off).

4. Repeat using same button.

➔

Flash “Heavy Duty” LED.

➔

Flash “Casual” LED.

➔

Flash “Normal” LED.

➔

Start sequence again at 1.

L2.

➔

hold 2-5
seconds

Press/

DIAGNOSTIC: Displaying Line Voltage

Used to display the line voltage currently being measured by the
machine control:

After all saved fault codes have been displayed, press the Cycle
Signal button. The last 2 digits of the voltage value will be displayed
on the dual 7-segment display.

A Dryness Level modifier LED will also be illuminated to indicate the
voltage range corresponding to the number displayed. The Dryness
Level LEDs relate to specific voltage ranges as follows:

■

The More LED will be illuminated for high voltage readings (above
260 VAC).

■

The Normal LED will be illuminated for normal voltage readings
(200-260 VAC).

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

DUAL ELEMENT MODELS:

2. Motor + heater 1.

3. Motor + heater 2.

4. Motor + heater 1 + heater 2 + drum light.

5. No loads on (motor + heaters off).

6. Repeat using same button.

➔

Flash “Casual” LED.

➔

Flash “Timed Dry” LED.

➔

Flash “Drum Light” LED.

➔

Flash “Normal” LED.

➔

Start sequence again at 1.

DEACTIVATING THE MANUAL LOAD TEST

Press the Stop button to exit this mode.

TECH SHEET - DO NOT DISCARD PAGE 3

DISPLAY FAULT CODES

The fault codes below would be indicated when attempting to start a
drying cycle or after activating the diagnostic test mode.

DISPLAY DESCRIPTION EXPLANATION / RECOMMENDED PROCEDURE

PF flashes to indicate that a power failure
occurred while the dryer was running. Press
START to continue the cycle, or press STOP to
clear the display.

AF flashes if a restricted airflow condition exists.
Check to make sure the lint screen is clean, the
door seal is in place and the vent is not
obstructed.

F-01 flashes when there is a primary control
failure. Replace the machine control electronics.
See Accessing & Removing the Electronic
Assemblies, page 11.

F-02 flashes when there is a stuck button or user
interface mismatch. This fault code will ONLY
appear when in the diagnostic test mode. See
TEST #6, page 10.

F-22 flashes if the exhaust thermistor is open.
See TEST #4a, page 9.

F-23 flashes if the exhaust thermistor has
shorted. See TEST #4a, page 9.

F-24 flashes if the inlet thermistor is open.
This fault code will ONLY appear when in the
diagnostic test mode. See TEST #4a, page 9.

F-25 flashes if the inlet thermistor is shorted.
This fault code will ONLY appear when in the
diagnostic test mode. See TEST #4a, page 9.

F-26 flashes if there is a motor drive system
failure. See TEST #3a, page 7.

F-28 flashes if the moisture sensor strip is open.
This fault code will ONLY appear when in the
diagnostic test mode. See TEST #5, page 10.

F-29 flashes if the moisture sensor strip has
shorted. This fault code will ONLY appear when in
the diagnostic test mode. See TEST #5, page 10.

F-30 flashes if a restricted airflow condition
exists. This fault code will ONLY appear when in
the diagnostic test mode. Check to make sure the
lint screen is clean, the door seal is in place and
the vent is not obstructed.

F-40 flashes if the communication between the
machine control and motor control is lost. See
TEST #3b, page 8.

F-41 flashes when there is a blower motor failure.
See TEST #3b, page 8.

F-42 flashes if the motor control detects a voltage
less than 90 VAC. See TEST #1, page 6 and
DIAGNOSTIC: Displaying Line Voltage, page 2.

F-43 flashes if the motor control detects a low
voltage condition. The dryer will continue to run at
a set blower speed. See TEST #1, page 6 and
DIAGNOSTIC: Displaying Line Voltage, page 2.

F-44 flashes when there is a motor control
electronics failure. See TEST #3b, page 8.

F-45 flashes when there is a motor control
electronics speed sensor failure. See TEST #3b,
page 8.

F-46 flashes if the motor control detects an
over-current or an over-torque condition. See
TEST #3b, page 8.

PF

AF

F-01

F-02

F-22

F-23

F-24

F-25

F-26

F-28

F-29

F-30

f-40

f-41

f-42

f-43

f-44

f-45

f-46

Power
Failure

Restricted

Airflow

Condition

Primary

Control

Failure

Keypad/

User Interface

Failure

Exhaust

Thermistor

Open

Exhaust

Thermistor

Shorted

Inlet

Thermistor

Open

Inlet

Thermistor

Shorted

Motor Drive

System Failure

Moisture

Sensor Open

Moisture

Sensor

Shorted

Restricted

Airflow

Condition

Communication

Error

Blower Motor

Failure

Undervoltage

Failure

Undervoltage

Warning

Motor Control

Failure

Motor Control

Speed Sensor

Error

Blower Motor

Error

TROUBLESHOOTING GUIDE

Some tests will require accessing components. See figure 2, page 6 for
component locations.

PROBLEM POSSIBLE CAUSE / TEST

NOTE: Possible Cause/Tests MUST be performed

in the sequence shown for each problem.

WON’T POWER UP.

(No response when
buttons are pressed.)

WON’T START CYCLE
WHEN START BUTTON
IS PRESSED.

WON’T SHUT OFF
WHEN EXPECTED.

CONTROL WON’T
ACCEPT SELECTIONS.

WON’T HEAT.

HEATS IN AIR CYCLE.

SHUTS OFF BEFORE
CLOTHES ARE DRY.

1. Supply connections. See TEST #1, page 6.

2. Check harness connections.

3. User interface assembly. See TEST #6, page 10.

1. If number display flashes, check to be sure the
door is completely shut, and press and hold down
START for about 1 second.

2. See TEST #3a, page 7.

3. See TEST #7, page 10.

1. Check STOP button. See TEST #6, page 10.

2. User interface assembly. See TEST #6, page 10.

3. Moisture sensor. See TEST #5, page 10.

User interface assembly. See TEST #6, page 10.

1. Heater. See TEST #4, page 8.

2. Check harness connections.

3. Check installation.

Heater. See TEST #4, page 8.

1. Check the dryness setting for auto cycles.

2. Check for full lint screen.

3. Check for clogged vent.

4. Moisture sensor. See TEST #5, page 10.

5. Dryness level adjust. See Adjusting
Customer-Focused Drying Modes, page 11.

PLUGGABLE DRIVE MOTOR SWITCH

Blue-White

Blue

Black-White

Red

Green-Yellow

Red

CENTRIFUGAL SWITCH (MOTOR)

Contacts

Function

Start

Run

1M 2M 3M 5M 6M

=

Contacts closed

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 4

ELECTRIC DRYER WIRING DIAGRAMS

SINGLE ELEMENT MODEL

L1 LINE – BK

BK

DRUM LAMP

BK

USER INTERFACE

BK

BR

VDD P1-8

DATA IN P1-7

VSS P1-6

STROBE P1-5

DATA OUT P1-4

CLOCK P1-3

BUZZER P1-2

+/- 12 VDC P1-1

R

P8-1

P9-2

N.O.

COM

LAMP LOAD

L1

P5-1 VDD
P5-2 DATA IN
P5-3 VSS
P5-4 STROBE
P5-5 DATA OUT
P5-6 CLOCK
P5-7 BUZZER
P5-8 +/- 12 VDC

P2-1 VDD
P2-2 DATA
P2-3 VSS

HEATER

RELAY 1

MACHINE
CONTROL

ELECTRONICS

NEUTRAL

DOOR

GND

MOTOR

MTR CS

MOIST.

MOIST RTN

MODEL

MODEL RTN

OUTLET TEMP.

OUTLET

TEMP RTN

INLET TEMP.

INLET

TEMP RTN

P8-3 NEUTRAL

P8-4

P8-2

P9-1

P8-5

P13-1

P13-2

P4-4
P4-5

P4-3

P4-6

P4-2

P4-1

240 VOLTS

120 VOLTS

T

G-Y

BU

BK-W

Y-R

G-Y

Y-R

EXHAUST THERMISTOR

R

R

INLET THERMISTOR

R

R

R

W

THERMAL FUSE

196°F 91°C()

SENSOR

MOVS

10k Ω

50k Ω

IMPORTANT: Electrostatic (static electricity) discharge may cause
damage to machine control electronics. See page 1 for details.

R – LINE L2

Y-R

BK

W – NEUTRAL N

BU

SENSOR

THERMAL

CUT-OFF

352°F (178°C)

4M

SWITCH

BELT

BU

NC

W

1.4–2.6 Ω

1.4–2.8 Ω

DRIVE MOTOR

1/3 H.P.

BK

NO

MAIN

START

DOOR

SWITCH

3M

HIGH LIMIT

THERMOSTAT

295°F (146°C)

W

5M

6M

NC

CENTRIFUGAL SWITCH

R-W

NEUTRAL
TERMINAL
LINKED TO
CABINET

W

HEATER
5400 W

R

2M

1M

R

G-Y

DUAL ELEMENT MODEL

L1 LINE – BK

BK

BK

USER INTERFACE

BK

THERMAL

CUT-OFF

352°F (178°C)

R-W

HIGH LIMIT

THERMOSTAT

295°F (146°C)

DRUM LAMP

NC

BR

VDD P1-8

DATA IN P1-7

VSS P1-6

STROBE P1-5

DATA OUT P1-4

CLOCK P1-3

BUZZER P1-2

+/- 12 VDC P1-1

BK

BK

R

N.O.

P8-1

P9-2

N.O.

N.O.

COM

COM

BLOWER
MOTOR

PHASE 3

PHASE 2

PHASE 1

LAMP LOAD

L1

P5-1 VDD
P5-2 DATA IN
P5-3 VSS
P5-4 STROBE
P5-5 DATA OUT
P5-6 CLOCK
P5-7 BUZZER
P5-8 +/- 12 VDC

P2-1 VDD
P2-2 DATA
P2-3 VSS

HEATER

RELAY 1

HEATER

RELAY 2

MACHINE
CONTROL

ELECTRONICS

P3

P2

P1

GY

MC2-1

OR

MC2-3

MC2-5

PK

WIDE

NEUTRAL

DOOR

MOTOR

MTR CS

MOIST.

MOIST RTN

MODEL

MODEL RTN

OUTLET TEMP.

OUTLET

TEMP RTN

INLET TEMP.

INLET

TEMP RTN

VDD

DATA

VSS

GND

240 VOLTS

120 VOLTS

PHASE 3
N.C.
PHASE 2
N.C.
PHASE 1

P2-1
P2-2
P2-3

P8-3 NEUTRAL

P8-4

P8-2

P9-1

BU

P8-5

BK-W

P13-1

P13-2

P4-4
P4-5

R

P4-3

R

P4-6

R

P4-2

R

P4-1

MOTOR

CONTROL

ELECTRONICS

VCC

DATA

VSS

MC3-3

MC3-1

MC3-2

W

T

G-Y

THERMAL FUSE

196°F 91°C()

Y-R

SENSOR

MOVS

G-Y

Y-R

EXHAUST THERMISTOR

10k Ω

INLET THERMISTOR

50k Ω

NEUTRAL

BU

Y-R

BK

W – NEUTRAL N

MC1-3

MC1-1

N.C.
N.C.

MC1-2

L1

MC1-4

BK

BU

SENSOR

4M

SWITCH

W

BELT

BU

DUAL MOTOR

MODEL

NC

NO

W

MAIN

1.4–2.6 Ω

START

1.4–2.8 Ω

DRIVE MOTOR

1/3 H.P.

DOOR

SWITCH

R – LINE L2

NEUTRAL
TERMINAL
LINKED TO

W

5M

CENTRIFUGAL SWITCH

3M

6M

HEATER
2700 W

V

R

HEATER
2700 W

CABINET

R

R

W

2M

G-Y

1M

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 5

DRIVE MOTOR STRIP CIRCUIT

L1

LINE – BK

BK

P9-2

L1

DOOR

MOTOR

MACHINE
CONTROL

ELECTRONICS

BLOWER MOTOR AND CONTROL STRIP CIRCUIT (DUAL MOTOR MODEL)

L1 LINE – BK

BLOWER

MOTOR

PHASE 3

PHASE 2

PHASE 1

BK

P9-2

L1

GY

OR

P3

P2

P1

MACHINE
CONTROL

ELECTRONICS

PK

WIDE

MC2-1

MC2-3

MC2-5

VDD

DATA

VSS

NEUTRAL

DOOR

MOTOR

120 VOLTS

P8-4

P9-1

BU

PHASE 3
N.C.
PHASE 2
N.C.
PHASE 1

P2-1
P2-2
P2-3

P8-3 NEUTRAL

P8-4

P9-1

T

120 VOLTS

T

BU

THERMAL FUSE

196°F 91°C()

MOTOR

CONTROL

ELECTRONICS

VCC

DATA

VSS

MC3-3

MC3-1

MC3-2

W

THERMAL FUSE

196°F 91°C()

BU

NEUTRAL

W – NEUTRAL N

MC1-3

MC1-1

N.C.
N.C.

MC1-2

L1

MC1-4

BK

BU

BU

BELT

SWITCH

4M

W

BU

W

1.4–
START

1.4– 2.8Ω

DRIVE MOTOR

1/3 H.P.

BU

MAIN

N

NC

DOOR

NO

SWITCH

5M

2.6

Ω

3M

NC

DOOR

SWITCH

NO

W

CENTRIFUGAL SWITCH

6M

W

NEUTRAL TERMINAL
LINKED TO CABINET

W

2M

1M

NEUTRAL
TERMINAL
LINKED TO
CABINET

W

G-Y

HEATER – SINGLE ELEMENT STRIP CIRCUIT

L1 LINE – BK

BK

R

N.O.

COM

HEATER
RELAY 1

MACHINE
CONTROL

ELECTRONICS

OUTLET TEMP.

TEMP RTN

INLET TEMP.

TEMP RTN

HEATER – DUAL ELEMENT STRIP CIRCUIT

L1 LINE – BK

BK

N.O.

HEATER

RELAY 1

THERMAL

CUT-OFF

352°F (178°C)

R-W

HIGH LIMIT
THERMOSTAT
295°F (146°C)

BK

R

NC

COM

BK

N.O.

HEATER
RELAY 2

COM

MACHINE
CONTROL

ELECTRONICS

OUTLET TEMP.

TEMP RTN

INLET TEMP.

TEMP RTN

OUTLET

INLET

OUTLET

INLET

240 VOLTS

P4-3

P4-6

P4-2

P4-1

R

240 VOLTS

P4-3

P4-6

P4-2

P4-1

EXHAUST THERMISTOR

R

10k Ω

R

INLET THERMISTOR

R

50k Ω

R

EXHAUST THERMISTOR

R

10k Ω

R

INLET THERMISTOR

R

50k Ω

R

THERMAL CUT-OFF

352°F (178°C)

R – LINE L2

R

5M

CENTRIFUGAL SWITCH

3M

6M

NC

BK

HIGH LIMIT

THERMOSTAT

295°F (146°C)

R-W

HEATER
5400 W

2M

G-Y

1M

R

R – LINE L2

R

5M

CENTRIFUGAL SWITCH

3M

6M

HEATER
2700 W

V

R

HEATER
2700 W

R

2M

G-Y

1M

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 6

MOISTURE SENSOR STRIP CIRCUIT

L1 LINE – BK

P9-2BK

L1

MACHINE

CONTROL

ELECTRONICS

See Accessing & Removing the
Electronic Assemblies, page 11, to access:

■

Machine Control Electronics

■

User Interface Assembly
Motor Control Electronics

■

(Dual Motor Model)

Moisture Sensor

Strips

Door

Switch

Heater

Assembly

See Removing the
Front Panel/Drum Assembly,
page 11, to access:

■

Moisture Sensors

■

Exhaust

■

Thermal Cut-off

■

High Limit

■

Heater

■

Thermal Fuse
Inlet Thermistor

■

Blower Motor (Dual Motor Model)

■

Figure 2. Component locations.

NEUTRAL

MOIST RTN

Thermistor

Thermostat

Assembly

120 VOLTS

MOIST.

P8-3 NEUTRAL

P13-1

P13-2

Y-R

SENSOR

MOVS

G-Y

Y-R

Blower Motor

(Dual Motor

Model)

W

Y-R

SENSOR

BK

See Removing
the Back Panel,
page 12, to
access:

■

Drum Light

Assembly

■

Drive Motor

■

Belt Switch

TROUBLESHOOTING TESTS

NOTE: These checks are done with the dryer unplugged or
disconnected from power.

TEST #1 Supply Connections

This test should only be done after confirming proper voltage at the
outlet.

1. Unplug dryer or disconnect power.

2. Remove the cover plate from the back of the dryer. See figure 3.

Cover

Plate

Remove Screw

L1

Figure 3. Remove the cover plate.

3. Make sure the power cord is securely fastened to the terminal

block.

4. With an ohmmeter, check for continuity between the neutral (N)
terminal of the plug and the center contact on the terminal block.
See figure 4.

Power Cord

Plug

N

COM

Te r m i nal Block

L1

Figure 4. Plug-to-terminal connections.

➔ If there is no continuity, replace the power cord and test the

dryer.

➔ If there is continuity, go to step 5.

5. In a similar way, check which terminal of the plug is connected to
the left-most contact on the terminal block and make a note of it.
This will be L1 (black wire) in the wiring diagram. See figure 4 and
the appropriate wiring diagram, page 4.

➔

When this is found, go to step 6.

➔

If neither of the plug terminals have continuity with the left-most
contact of the terminal block, replace the power cord and test
the dryer.

6. Access the machine control electronics without disconnecting
any wiring to the control board. See Accessing & Removing the
Electronic Assemblies, page 11.

7. With an ohmmeter, check for continuity between the L1 terminal
of the plug (found in step 5) and P9-2 (black wire) on the machine
control board. See figure 16, page 12.

➔

If there is continuity, go to step 8.

➔

If there is no continuity, check that wires to the terminal block
are mechanically secure. If so, replace the main wire harness
and test the dryer.

8. Check for continuity between the neutral (N) terminal of the plug
and P8-3 (white wire) on the machine control board.

➔

If there is continuity, go to step 9.

➔

If there is no continuity and the mechanical connections of the
wire are secure, replace the main wire harness.

9. Visually check that the P5 connector is inserted all the way into
the machine control electronics.

10. Visually check that the user interface assembly is properly

inserted into the front console.

11. If both visual checks pass, replace the user interface assembly.

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 7

12. Plug in dryer or reconnect power.

13. Perform the Console Buttons and

Indicators Diagnostic test, page 1, to
verify repair.

14. If indicators still do not light, the
machine control electronics has failed:

Unplug dryer or disconnect power.

➔

Replace the machine control

➔

electronics.

Plug in dryer or reconnect power.

➔

Perform the Console Buttons and

➔

Indicators Diagnostic test, page 1 to
verify repair.

TEST #2 Machine Control
Power Check

This test is used to determine if power is
present at the machine control electronics.

NOTE: The drum light is controlled by the
machine control on all models.

1. Plug in dryer or reconnect power.

2. Open the door.

If the drum light illuminates, then

➔

power is present at the machine
control. Go to TEST #6, page 10.

➔ If the drum light fails to illuminate,

do not assume the machine control
electronics needs replacement.
Several conditions may cause the
drum light not to illuminate, including
a bad bulb. If the drum light does not
illuminate, go to TEST #1, page 6.

the drum belt from the spring-loaded belt
switch pulley, gently letting the belt switch
pulley down. See figure 5.

Tension

Pulley

Drum

Belt

Figure 5. Slowly remove drum belt.

6. Remove the white connector from the

drive motor switch. See figure 6.

Drive Motor

Switch

2

6

4
3

5

1

White

Connector

WINDING RESISTANCEΩCONTACT POINTS OF

MEASUREMENT

Blue wire in back at

MAIN

1.4–2.6

pin 4 and bare copper
wire on pin 5 of black

drive motor switch

Blue wire in back at

START

1.4–2.8

pin 4 and bare copper
wire on pin 3 of black

drive motor switch

If the resistance at the motor is correct,

➔

there is an open circuit between the
motor and machine control
electronics. Check for failed belt
switch.

If the Start winding resistance is much

➔

greater than 4 ohms, replace the motor.

8. Check the belt switch by measuring
resistance between the two blue wires as
shown in figure 8, while pushing up the
belt switch pulley.

Belt Switch

Blue Wires

(Back and 4 position)

2

6

4
3

5

1

Tension

Pulley

TEST #3a Drive Motor Circuit

This test will check the wiring to the motor
and the motor itself. The following items are
part of this motor system:

–

Harness/
connection

–

Thermal fuse

–

Belt/belt switch

–

Drive motor

1. Unplug dryer or disconnect power.

2. Access the machine control electronics

and measure the resistance across P8-4
and P9-1. See Accessing & Removing the
Electronic Assemblies, page 11.

➔

If resistance across P8-4 and P9-1 is in
the range of 1 to 6 ohms, replace the
machine control electronics.

➔

Otherwise, go to step 3.

3. Check the wiring and components in the
path between these measurement points
by referring to the appropriate wiring
diagram and strip circuit, pages 4 and 5.

4. Check the thermal fuse. See TEST #4b,
page 9.

5. Check the belt switch and drive motor.
Access the belt switch and drive motor by
removing the back panel. See Removing
the Back Panel, page 12. Slowly remove

–

Centrifugal switch

–

Door switch

–

Machine control
electronics. See
ESD information,
page 1.

Figure 6. Remove white connector.

Main Winding:

and Bare Copper Wire (5 position)

Start Winding:
Blue Wire in Back
and Bare Copper

Wire (3 position)

Blue Wire in Back

2
6

4
3

5

1

Figure 7. Main and start winding
measure points.

7. Using figure 7, check for the resistance
values of the motor’s Main and Start
winding coils as shown in the following
table.

NOTE: Main and Start winding coils must
be checked at the motor.

Figure 8. Checking the belt switch.

➔

If the resistance reading goes from
infinity to a few ohms as pulley arm
closes the switch, belt switch is OK.
If not, replace the belt switch.

➔

If belt switch is OK and there is still an
open circuit, check and repair the
wiring harness.

9. Door switch problems can be uncovered
in the Door Switch Diagnostic Test, page 1;
however, if this was not done, the
following can be done without applying
power to the dryer. Connect an ohmmeter
across P8-3 (neutral, white wire) and P8-4
(door, tan wire).

➔

With the door properly closed, the
ohmmeter should indicate a closed
circuit (0–2 ohms).

➔

If not, replace the door switch
assembly. See figure 12, page 11; and
Removing the Front Panel/Drum
Assembly, page 11.

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 8

Replace both the thermal cut-off and

TEST #3b Blower Motor (Dual
Motor Model)

1. Access the motor control electronics. See
Accessing & Removing the Electronic
Assemblies, page 11.

2. Visually check the communication har
ness. See figure 15, page 12. The com
munication harness is a three-wire har­ness that connects between the two elec­tronic control assemblies. Make sure it is
fully inserted into both electronic controls.

3. If the communication harness looks OK,
go to step 4.

4. Visually check the wire harnesses
connected to the motor control electronic
assembly. Make sure they are clean and
fully inserted into the control.

If the connections look OK, go to

➔

step 5.

5. Remove the MC2 blower motor electrical
connector from the blower motor
electronic control.

6. Measure the resistance between the fol
lowing terminals on the connector: pins
1 to 3, 1 to 5 and 3 to 5. The resistance
should be between 55 and 65 ohms.

➔ If the resistance looks OK, go to

step 7.

➔ If the resistance is much greater than

65 ohms, go to step 7.

➔ If the resistance is much less than

55 ohms, replace the blower motor.

7. Visually check the wire harness
connection at the blower motor (See
Accessing the Blower Motor below).

➔ If the connections look OK, check for

obstructions in the blower housing.
Make sure blower fan rotates freely.

➔

If no obstructions are found, replace
the motor control electronic assembly.

-

-

-

Accessing the Blower Motor:

Follow the steps under Removing the Front
Panel/Drum Assembly, page 11. The blower
motor is located on top of the blower
housing as shown in figure 9.

Blower Motor

Figure 9. Blower motor location.

TEST #4 Heater

This test is performed when either of the
following situations occur:

Dryer does not heat

✔

Heat will not shut off

✔

This test checks the components making up
the heating circuit. The following items are
part of this system:

Harness/

–

connection
Heater relay

–

Thermal cut-off

–

Inlet thermistor/

–

high limit
thermostat

Heat element

–

assembly

Centrifugal switch

–

Exhaust thermistor

–

Machine control

–

electronics. See
ESD information,
page 1.

User interface

–

assembly

Dryer does not heat:

Locate the components using figure 2,
page 6; and figure 10.

SINGLE ELEMENT MODEL

1. Unplug dryer or disconnect power.

2. Remove the front panel and drum

assembly to access the thermal
components. See Removing the Front
Panel/Drum Assembly, page 11.

3. Using an ohmmeter and referring to the
appropriate wiring diagram and strip cir­cuit, pages 4 and 5, measure the resis­tance from the red wire terminal at the
thermal cut-off to the red wire terminal at
the heater.

Inlet Thermistor/

High Limit

Thermostat

Heater

Element

Figure 10. Thermal components,
viewed from front.

➔

If the resistance is about 10 ohms, go
to step 5.

➔

If an open circuit is detected, go to
step 4.

4. Visually check the wire connections to the
thermal cut-off, high limit thermostat, and
heater. If connections look good, check
for continuity across each of these
components.

➔

Replace the heater if it is electrically
open.

:

Thermal Cut-Off

Exhaust

Thermistor

Thermal Fuse

➔

high limit thermostat if either one is
electrically open.

5. If no open circuit is detected, remove the
P4 connector, then measure the
resistance between P4-3 (red wire) and
P4-6 (red wire) at the connector. See
figure 16, page 12 for connector location;
and Accessing & Removing the
Electronic Assemblies, page 11.

If 5–15 k ohms are measured, replace

➔

the machine control electronics.

If the resistance is less than 1 k ohm,

➔

replace the thermistor.

DUAL ELEMENT MODEL

1. Unplug dryer or disconnect power.

2. Remove the front panel/drum assembly

to access the thermal components. See
Removing the Front Panel/Drum
Assembly, page 11.

3. Using an ohmmeter and referring to the
appropriate wiring diagram and strip
circuit, pages 4 and 5, measure the
resistance from the black wire terminal at
the thermal cut-off to the red wire terminal
at the high limit thermostat.

If an open circuit is not detected, go to

➔

step 5.

➔ If an open circuit is detected, go to

step 4.

4. Visually check the wires connections to
the thermal cut-off and the high limit
thermostat. If connections look good,
check for continuity across each of these
components. Replace both the thermal
cut-off and high limit thermostat if either
one is electrically open.

5. Measure the resistance between the red
wires at the heater.

➔

If an open circuit is not detected, go to
step 7.

➔

If an open circuit is detected, go to
step 6.

6. Visually check the wire connections to
the heater. If the connections look good,
replace the heater.

7. Measure the resistance at the heater
between the violet wire and the red wire
with the larger terminal.

➔

If an open circuit is not detected, go to
step 9.

➔

If an open circuit is detected, go to
step 8.

8. Visually check the wire connections to
the heater. If the connections look good,
replace the heater assembly.

9. If no open circuit is detected, remove the
P4 connector, then measure the
resistance between P4-3 (red wire) and
P4-6 (red wire) at the connector. See
figure 16, page 12 for connector location;
and Accessing & Removing the
Electronic Assemblies, page 11.

➔

If 5–15 k ohms are measured, replace
the machine control electronics.

:

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 9

If the resistance is less than 1 k ohm,

➔

replace the exhaust thermistor.

Heat will not shut off:

1. Unplug dryer or disconnect power.

2. Access the machine control electronics,

remove the P4 connector, then measure
the resistance between P4-3 (red wire)
and P4-6 (red wire) at the connector. See
figure 16, page 12 for connector location;
and Accessing & Removing the
Electronic Assemblies, page 11.

If 5–15 k ohms are measured, replace

➔

the machine control electronics.

If the resistance is greater than

➔

20 k ohms, replace the exhaust
thermistor.

TEST #4a Thermistors

EXHAUST THERMISTOR

The machine control electronics monitors the
exhaust temperature using the exhaust
thermistor, and cycles the heater relay on
and off to maintain the desired temperature.

Begin with an empty dryer and a clean lint
screen.

1. Plug in dryer or reconnect power.

2. Start the Timed Dry cycle.

3.

If after 60 seconds,
in the display and the dryer shuts off, the
thermistor or wire harness is either open
or shorted.

➔ Unplug dryer or disconnect power.
➔ Check wire connections at the ma-

chine control electronics and thermis­tor. See Accessing & Removing the
Electronic Assemblies, page 11; and for
thermistor location, figure 10, page 8.

➔

If wire connections are OK, check the
exhaust thermistor resistance per
step 5.

4.

If

F-22 or F-23 does not flash in the

display, the connections to the thermistor
are good. Therefore, check the exhaust
temperature value at any or all of the
temperature levels in question, using the
Timed Dry cycle, and the following
process:

Hold a glass bulb thermometer capable
of reading from 90° to 180°F (32° to 82°C)
in the center of the exhaust outlet. The
correct exhaust temperatures are as
follows:

EXHAUST TEMPERATURES

TEMPERATURE

SETTING

High

Medium

Low

Extra Low

The measured overshoot using the glass

*

bulb thermometer in the exhaust outlet can
be 30°F (17°C) higher.

HEAT TURNS OFF*

155°±5° (68°±3°)
140°±5° (60°±3°)
125°±5° (52°±3°)
105°±5° (41°±3°)

F-22 or F-23 flashes

°F (°C)

HEAT TURNS ON

10°–15° (6°–8°)

heat turn off

temperature

°F (°C)

below the

5. If the exhaust temperature is not within
specified limits, or you have come here
from step 3, remove the P4 connector,
then measure the resistance between
P4-3 (red wire) and P4-6 (red wire) at the
connector. See figure 16, page 12 for
connector location; and Accessing &
Removing the Electronic Assemblies,
page 11.

If the resistance is OK, check P14-3

➔

and P14-6 to machine ground.

If resistance is grater than 0 (zero),

➔

replace wiring harness.

NOTE: All thermistor resistance
measurements must be made while dryer
is disconnected from power.

The following table gives temperatures
and ranges for the associated thermistor
resistance values.

EXHAUST THERMISTOR RESISTANCE

TEMP.

°F (°C)

50° (10°) 19.0–22.0 80° (27°) 8.5–10.5

60° (16°) 14.8–16.8 90° (32°) 6.8–8.8

70° (21°) 11.5–13.5 100° (38°) 5.0–7.0

➔ If the thermistor resistance does not

agree with table, replace the exhaust
thermistor.

➔ If the thermistor resistance checks

agree with the measurements in the
table, replace the machine control
electronics.

INLET THERMISTOR

The machine control electronics monitors the
inlet temperature using an inlet thermistor
that is part of the high limit thermostat
assembly.

1. Activate the diagnostic test mode. See
procedure on page 1.

2.

If

F-24 or F-25 is a displayed error in the

diagnostic test mode, the thermistor or
wire harness is either open or shorted.

➔

Unplug dryer or disconnect power.

➔

Check wire connections at the
machine control electronics and inlet
thermistor. See Accessing & Removing
the Electronics Assemblies, page 11,
and for inlet thermistor location see
figure 10, page 8.

➔

If wire connections are good, remove
the wires from the inlet thermistor/high
limit thermostat assembly and replace
the assembly.

➔

Plug in dryer or reconnect power.

3.

If

F-24 or F-25 is not an error that is dis

played in the diagnostic test mode, the
connections to the thermistor are good.
Therefore, check the thermistor’s resis
tance value, using the following process:

➔

Unplug dryer or disconnect power.

➔

Access the heater assembly. See
figure 2, page 6; and Removing the
Front Panel/Drum Assembly, page 11.

RES.

k Ω

TEMP.

°F (°C)

RES.

k Ω

-

-

Hold a glass bulb thermometer

➔

capable of reading from 68° to 176°F
(20° to 80°C) in the heater assembly.

Check the resistance of the inlet

➔

thermistor. See figure 10, page 8 for
location.

INLET THERMISTOR RESISTANCE

TEMP.

°F (°C)

68° (20°) 61.2–63.7 131° (55°) 14.6–15.3

77° (25°) 49.0–51.0 140° (60°) 12.1–12.8

86° (30°) 39.5–41.1 149° (65°) 10.2–10.7

95° (35°) 32.0–33.3 158° (70°) 8.5–9.0

104° (40°) 26.1–27.2 167° (75°) 7.2–7.6

113° (45°) 21.4–22.3 176° (80°) 6.1–6.5

122° (50°) 17.6–18.5

The table above shows the resistance
values that should be observed for the
various temperatures at the heater
assembly.

If the thermistor resistance does not

➔

agree with the measurements in the
table, replace the inlet thermistor/ high
limit thermostat assembly.

➔ If the thermistor resistance agrees with

the measurements in the table, replace
the machine control electronics.

RES.

RANGE

k Ω

TEMP.

°F (°C)

RES.

RANGE

k Ω

TEST #4b Thermal Fuse

The thermal fuse is wired in series with the
dryer drive motor.

1. Unplug dryer or disconnect power.

2. Access the thermal fuse by first removing

the front panel. See Removing the Front
Panel/Drum Assembly, page 11; and for
thermal fuse location see figure 10,
page 8.

3. Using an ohmmeter, check the continuity
across the thermal fuse.

➔

If the ohmmeter indicates an open
circuit, replace the failed thermal fuse.

TEST #4c Thermal Cut-Off

If the dryer does not produce heat, check the
status of the thermal cut-off.

1. Unplug dryer or disconnect power.

2. Access the thermal cut-off by first

removing the front panel and drum
assembly. See Removing the Front
Panel/Drum Assembly, page 11.

3. Using an ohmmeter, check the continuity
across the thermal cut-off. See figure 10,
page 8, for location.

➔

If the ohmmeter indicates an open
circuit, replace the failed thermal
cut-off and inlet thermistor/high limit
thermostat. In addition, check for
blocked or improper exhaust system,
or failed heat element.

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 10

TEST #5 Moisture Sensor

NOTE: This test is started with the machine
completely assembled.

This test is performed when an automatic
cycle stops too soon, or runs much longer
than expected.

NOTE: Dryer will shut down automatically
after 2½ hours.

The following items are part of this system:

Harness/connection

–

Metal sensor strips

–

Machine control electronics

–

1. Activate the diagnostic test mode and
advance past saved fault codes. See
procedure on page 1.

2. Open the dryer door. If a continuous
beep tone is heard and an alphanumeric
number is displayed on the console as
soon as the door is opened, a short
circuit exists in the moisture sensor
system.

If this doesn’t happen, go to step 3.

➔

Otherwise, go to step 4.

➔

NOTE: Over drying may be caused by a
short circuit in the sensor system.

3. Locate the two metal sensor strips on the
face of the lint screen housing. Bridge
these strips with a wet cloth or finger.

➔ If a continuous beep tone is heard and

a software revision number is
displayed on the console, the sensor
passes the test. Go to step 8.

➔ If not, continue with step 4.

4. Access the moisture sensor wires by
removing the front panel. See Removing
the Front Panel/Drum Assembly, page 11.
Disconnect the sensor connector. See
figure 11.

Sensor

Sensor Harness

with MOVs

(Metal Oxide

Var istors)

Sensor

Lint Screen

Housing

Figure 11. Disconnect sensor
connector.

Connector

5. Access the machine control electronics.
See Accessing & Removing the
Electronic Assemblies, page 11. Remove
the connector P13 from the circuit board.
Check the main harness connections
between the sensor connector and
machine control for a short or open
circuit.

Replace the main harness if necessary.

➔

If harness is OK, continue with step 6.

➔

6. Measure the resistance
across the outermost
contacts of the sensor
connector that includes the two MOVs.

If a small resistance is measured,

➔

check for debris across moisture strips
inside of the drum; clean if debris is
present. If debris is not present,
replace sensor harness with MOVs.

Otherwise go to step 7.

➔

7. Measure the resistance across
each of the outermost
contacts and the center
terminal (ground connection).

If a resistance less than infinity is

➔

measured, replace the sensor harness
with MOVs.

8. If moisture sensor diagnostic test passes,
check the thermistor: Perform TEST #4a,
page 9.

➔ If the problem persists after replacing

the moisture sensor, harness with
MOVs and thermistor, replace the
machine control electronics.

TEST #6 Buttons and
Indicators

This test is performed when any of the
following situations occurs during the
Console Buttons and Indicators Diagnostic
Test, page 1:

✔

None of the indicators light up

✔

No beep sound is heard

✔

Some buttons do not light indicators

None of the indicators light up:

1. See Diagnostic Guide/Before Servicing...
on page 1.

2. Perform TEST #1, page 6 to verify supply
connections.

3. Perform TEST #2, page 7.

4. Perform steps in Accessing & Removing

the Electronic Assemblies, page 11 and
visually check that the P5 connector is
inserted all the way into the machine
control electronics.

5. Visually check the user interface
assembly connections.

6. If both visual checks pass, replace the
user interface assembly.

7. Plug in dryer or reconnect power.

8. Perform the Console Buttons and

Indicators Diagnostic test, page 1 to
verify repair.

9. If indicators still do not light, the machine
control electronics has failed:

Unplug dryer or disconnect power.

➔

Replace the machine control

➔

electronics.

Plug in dryer or reconnect power.

➔

Perform the Console Buttons and

➔

Indicators Diagnostic test, page 1 to
verify repair.

No beep sound is heard:

1. Perform steps in Accessing & Removing
the Electronic Assemblies, page 11 and
visually check that the P5 connector is
inserted all the way into the machine
control electronics.

If visual check passes, replace the user

➔

interface assembly.

2. Plug in dryer or reconnect power.

3. Perform the Console Buttons and

Indicators Diagnostic test, page 1 to
verify repair.

4. If replacing the user interface assembly
failed:

➔ Unplug dryer or disconnect power.
➔ Replace the machine control

electronics.

➔ Plug in dryer or reconnect power.
➔ Perform the Console Buttons and

Indicators Diagnostic test, page 1
to verify repair.

Some buttons do not light indicators:

1. Perform steps in Accessing & Removing
the Electronic Assemblies, page 11 and
visually check the user interface
assembly connections.

➔

If visual check passes, replace the user
interface assembly.

2. Plug in dryer or reconnect power.

3. Perform the Console Buttons and

Indicators Diagnostics test, page 1 to
verify repair.

TEST #7 Door Switch

Activate the diagnostic test mode as shown
on page 1, and perform the Door Switch
Diagnostic test, page 1. Functionality is
verified with a beep each time the door is
closed and opened, and a number and letter
appears in the display (i.e.,

If any of these conditions are not met:

➔

Unplug dryer or disconnect power.

➔

Check that the wires between the door
switch and machine control electronics
are connected. See figure 12, page 11 for
switch location and see Removing the
Front Panel/Drum Assembly, page 11.

0E, 09).

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 11

If the connections are OK, replace the

➔

door switch assembly and retest.

If the door switch assembly has been

➔

replaced and dryer still does not start,
replace the machine control
electronics.

Front Cover Screw

(Inside Cabinet)

Door Switch

Connector

ACCESSING & REMOVING
THE ELECTRONIC
ASSEMBLIES

There are up to three electronic assemblies;
the machine control electronics, the motor
control electronics (dual motor models), and
the user interface electronics. See figures 15
below; and 16, page 12.

Door Switch

Figure 12. Door switch location.

ADJUSTING CUSTOMER­FOCUSED DRYING MODES

NOTE: If the customer is complaining about
the clothes being damp and the moisture
sensor passes TEST #5, page 10, step 3, the
total dry time for an automatic cycle can be
lengthened by changing from a “1” (standard
auto cycle) to a “2” (15% more drying time)
or “3” (20% more drying time) auto cycle.

1. Press and hold the Dryness Level button
for 5 seconds. The dryer will beep and
display

CF for one second, then the

current drying mode will be seen on the
display. The factory default value is “1”.

2. To select a different drying mode, press
the Dryness Level button again. The dryer
display will flash and show the available
settings.

3. With the display flashing the selected
drying mode, press the Start button to
save the drying mode and exit (the Start
button in this mode does not start a
drying cycle). The result will be stored in
EEPROM of the control board, and will be
retained after a power loss.

4. Press the Stop button at any time to
cancel changes and exit from this mode.

REMOVING THE FRONT
PANEL/DRUM ASSEMBLY

1. Unplug dryer or disconnect power.

2. Open the door.

3. Push on the retaining clips located under

top of dryer on the right and left side
using a flat object such as a putty knife.
See figure 13.

Top Clips

Figure 13. Slowly rotate top backwards
and support.

4. Slowly rotate top backwards and lean
against wall, or support with a prop rod.

5. Disconnect the door switch wire harness
located on the right side. See figure 13.

6. Remove the front panel/door assembly
by removing the two front cover screws at
the top of the panel inside the cabinet,
and lifting upward.

7. Disconnect the moisture sensor
connections. See figure 11, page 10.

8. Remove the lint screen.

9. Remove the lint screen housing by

removing the four screws holding the lint
screen housing. See figure 14.

Figure 14. Remove the front bulkhead.

10. Remove the front bulkhead by loosening

the upper two screws and removing the
lower two screws. See figure 14.

11. Lower components can be accessed at

this time, however, if the drum is to be
removed, the belt must be removed. See
TEST #3a, step 5, page 7.

Reinstalling the Front Panel/Drum
Assembly

Refer to preceding removal sections and
replace in reverse order

NOTE: Make sure to reconnect the moisture
sensor wire connections.

User Interface

Assembly

Back Cover

Ribbon

Cable

Machine Control

Electronics

Assembly

Figure 15. Locate the electronic
assemblies.

1. Unplug dryer or disconnect power.

2. Remove three screws from the rear of the

console assembly. Pull console towards
front of dryer to hinge open and/or
remove console.

Back Cover

Locking Tabs

3 Screws

Metal Bracket

Communication

Harness

(Dual Motor

Model)

Screw

Motor Control

Electronics

Assembly

(Dual Motor

Model)

Removing the Machine Control
Electronics

3. Remove the wire connections to the
machine control assembly.

4. Remove the one screw holding the
machine control assembly to the
metal bracket. See figure 15.

5. Push in on the tab located on the back
of the machine control to slide it off
the bracket.

Removing the Motor Control
Electronics (Dual Motor Models)

3. Remove the wire connections to the
motor control assembly. See figure 15.

4. Remove the two screws holding the
motor control electronics assembly to
the dryer top.

Removing the User Interface
Assembly

3. Remove the wire connections from the
user interface assembly, including the
P5 ribbon cable. See figure 15.

4. Remove the cycle selector knob from
the front of the console by firmly
pulling on it or carefully prying straight
upward.

FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

TECH SHEET - DO NOT DISCARD PAGE 12

Heater

N.O.

Black

N.O.

Black

Date CodeYDDD-xx

MADE IN COO

XXXX-XXX

P/N XXXXXX Rev X

COM

Violet

COM

Relay 1

Red

(Dual Element Model Only)

Figure 16. Machine control electronics.

5. The user interface assembly is held to

the console insert panel by three
screws and two locking tabs. After the
screws are removed, lift each of the
locking tabs to remove the back cover
of the user interface assembly. See
figure 15, page 11.

6. Remove the cycle selector switch from
the user interface assembly opening
by lifting the locking tab on the cycle
selector switch and turning the
selector switch in a counterclockwise
direction. See figure 17.

Blue Black

P9

1

5

Motor
Relay

Black-White

Ta n

White

1

Green-Yellow

P8

Brown

Heater Relay 2

Reinstalling the Electronic
Assemblies

Refer to preceding removal sections and
replace in reverse order.

NOTE: When replacing the cycle selector
switch, make sure that the shaft is positioned
through the center of the shaft seal that is
captive between the decorative overlay and
the console panel insert.

NOTE: When reconnecting wire
connections, be sure to route the user
interface wires beneath the retainer clips on
the user interface back cover.

Yellow-Red

1

1

P13

P3

P5

8

1

P2

3

P14

1

6

3

P4

1

1

REMOVING THE BACK PANEL

1. Unplug dryer or disconnect power.

2. Remove the cover plate screw and cover

plate. See figure 18.

3. Remove the nine rear screws from the
back panel, then remove panel.

Cover Plate

Figure 17. Gently apply pressure to
locking tabs to release the user interface
assembly.

7. Locking tabs located at the bottom of
the console insert panel secure the
user interface assembly to the console
insert panel. Using a flat-blade
screwdriver, gently apply pressure to
the locking tabs to release the user
interface assembly. See figure 17.

03/06 FOR SERVICE TECHNICIAN’S USE ONLY PART NO. W10035270

Figure 18. Remove screws.

SOFTWARE COPYRIGHTED.

MANUFACTURED UNDER ONE OR MORE

OF THE FOLLOWING U.S. PATENTS:

4,669,200
4,700,495
4,754,556
4,840,285
4,865,366
4,899,464
4,908,959

4,989,347
5,066,050
5,560,120
5,809,828
6,020,698
6,047,486
6,199,300

6,446,357
6,597,144
6,604,298
6,685,241
6,732,447
6,784,673
6,819,255

D314,261
D314,262
D457,991
D457,992
D495,453