Whirlpool W10254474B User manual

PAGE 1
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
IMPORTANT SAFETY NOTICE — “For Technicians only”
This service data sheet is intended for use by persons having electrical, electronic, and
mechanical experience and knowledge at a level generally considered acceptable in the
appliance repair trade. Any attempt to repair a major appliance may result in personal injury
and property damage. The manufacturer or seller cannot be responsible, nor assume any
liability for injury or damage of any kind arising from the use of this data sheet.
Whirlpool Control Panel........................................ 2
Maytag Control Panel ........................................... 3
Diagnostic Guide.................................................. 4
Activating Service Diagnostic Mode...................... 4
Service Diagnostic Menu...................................... 4
User Interface Test ............................................... 5
Software Version DIsplay ..................................... 5
Contents
Quick Diagnostics ................................................ 6
Fault/Error Codes ........................................... 7–10
Troubleshooting Guide.................................. 11, 12
Test Procedures ........................................... 13–21
Manually Unlocking the Door Lock System ......... 22
Component Removal.......................................... 22
Wiring Diagrams .......................................... 23, 24
PART NO. W10254474B
IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics
ESD problems are present everywhere. Most people begin to feel an ESD discharge at
approximately 3000V. It takes as little as 10V to destroy, damage, or weaken the main control
assembly. The new main control assembly may appear to work well after repair is finished,
but a malfunction 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
-OR-
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 electronic control assembly
by edges only.
When repackaging main control assembly in anti-static bag, observe above instructions.
Voltage Measurement Safety Information
When performing live voltage measurements, you must do the following:
Verify the controls are in the off position so that the appliance does not start when energized.
Allow enough space to perform the voltage measurements without obstructions.
Keep other people a safe distance away from the appliance to prevent potential injury.
Always use the proper testing equipment.
After voltage measurements, always disconnect power before servicing.

PAGE 2
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WHIRLPOOL CONTROL PANEL (features and appearances may vary between models)
Figure 1 - User Interface Test
“FanFresh” button: press
once to turn off indicator.
Not available on all models.
“Deep Clean” button: press
once to turn off indicator.
Not available on all models.
Option buttons: press each
button once to turn off
its respective indicator.
Press each modifier button
once to turn off its respective
display segment.
“Delay Start (p)”
button: press once to turn off
seven-segment display.
Rotating the cycle selector knob turns off each corresponding cycle
indicator. (Features and appearances vary between models).
“POWER” button: press once to turn
off indicator. Press twice to exit most
service diagnostic modes and return
to standby mode.
“START/PAUSE” button: begin
or continue test. Press once
to turn off indicator.
“Delay Start (q)” button: press once
to turn off top segment of display.

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DO NOT REMOVE OR DESTROY
The cycle selector LED will turn off after slowly rotating
the knob through all of its positions. (Features and
appearances vary between models).
“power/cancel” button: press once to
turn off indicator. Press twice to exit
most service diagnostic modes and
return to standby mode.
“start/pause” button: begin
or continue test. Press once
to turn off indicator.
“delay start (+)” button:
press once to turn off
seven-segment display.
“fresh hold” button: press
once to turn off indicator.
Not available on all models.
“steam for stains” button:
press once to turn off indicator.
Not available on all models.
Figure 2 - User Interface Test
Option buttons: press each
button once to turn off its
respective indicator.
“delay start (–)” button:
press once to turn off the
upper right corner of display.
Press each modifier button once to
turn off its respective display segment.
(Recommended buttons to access
Diagnostic Mode).
MAYTAG CONTROL PANEL (features and appearances may vary between models)

PAGE 4
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ABBREVIATIONS
CCU: Central Control Unit
IF: Interference Filter
MCU: Motor Control Unit
UI: User Interface (center/modifier PCBs
& housing)
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? Was a regular fuse used? Inform
customer that a time-delay fuse is required.
Are both hot and cold water faucets open
and water supply hoses unobstructed?
All tests/checks should be made with a
VOM (volt-ohm-milliammeter) or DVM
(digital-voltmeter) having a sensitivity of
20,000 Ωper volt DC or greater.
Resistance checks must be made with
washer unplugged or power disconnected.
IMPORTANT: Avoid using large
diameter probes when checking harness
connectors as the probes may damage
the connectors upon insertion.
Check all harnesses and connections
before replacing components. Look for
connectors not fully seated, broken or
loose wires and terminals, pin insertion,
or wires not pressed into connectors
far enough to engage metal barbs.
A potential cause of a control not
functioning is corrosion or contamination on
connections. Use an ohmmeter to check for
continuity across suspected connections.
SERVICE DIAGNOSTIC MODE
These tests allow 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 washer with these tests
before going to specific troubleshooting tests.
ACTIVATING SERVICE DIAGNOSTIC MODE
1. Be sure the washer is in standby mode
(plugged in with all indicators off).
2. Select any three (3) buttons (except
POWER) and follow the steps below, using
the same buttons. Remember the buttons
and the order that the buttons were pressed.
Within 8 seconds,
•Press and Release the 1st selected button,
•Press and Release the 2nd selected button,
•Press and Release the 3rd selected button;
•Repeat this 3 button sequence 2 more times.
3. If the Service Diagnostic mode has
been entered successfully, all indicators on
the console are illuminated for 5 seconds
with “888” showing in the Estimated Time
Remaining seven-segment display. If there
are no saved fault codes, all indicators on the
console will momentarily turn off, and then
only the seven-segment display will come
back on and display “888”.
NOTE: The Service Diagnostic mode will time
out after 5 minutes of user inactivity, or shut
down if AC power is removed.
Button Press Function Behavior
1st Button-Momentary press
- Press and hold for 5 secs.
- Activates User Interface Test
- Exits Service Diagnostic Mode
2nd Button-Momentary press
- Press and hold for 5 secs.
- Activates Quick Diagnostic Test
- Software Version Display
3rd Button-Momentary press
- Press and hold for 5 secs.
- Displays Next Error Code
- Clears the Error Codes
SERVICE DIAGNOSTIC MENU

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Unsuccessful Activation
If entry into Service Diagnostic mode is
unsuccessful, refer to the following indications
and actions:
Indication 1: None of the indicators or display
turn on.
Action: Select any cycle.
If indicators come on, check the functionality
for the three buttons used to activate the
Service Diagnostic mode. Verify that the
button responds and a beep sound is heard
when pressed. If the button is faulty, it will
not be possible to enter the diagnostic mode
using that button. Replace the user interface
and housing assembly. Refer to Component
Removal on page 22.
If no indicators come on after selecting the
cycle, go to TEST #1, CCU Power Check,
page 13.
Indication 2: All console indicators begin
flashing immediately.
Action: If all console indicators begin flashing
on and off immediately, replace the user
interface.
Activation with Saved Fault Codes
If there is a saved fault code, it will be flashing
in the display. Review the Fault/Error Codes on
pages 8–10 for the recommended procedure.
If there is no saved fault code, “888” will be
displayed.
USER INTERFACE TEST (Figures 1 & 2)
NOTE: The Service Diagnostic mode must be
activated before entering the User Interface Test;
see procedure on page 4.
Active Fault Code Display
in User Interface Test
If the display begins flashing while in User
Interface Test, it is displaying an active fault
code. Active fault codes are codes that are
currently detected. Only one active fault code
can be displayed at a time.
Entry Procedure
Press and release the 1st button used to
activate Service Diagnostic mode. All console
indicators turn on and “888” is displayed.
User Interface Test
Pressing each button will turn off its
corresponding indicator(s) or display segment
and sound a beep as shown in figures 1 & 2.
WHIRLPOOL: Rotating the cycle selector knob
turns off each corresponding cycle indicator.
MAYTAG: The cycle selector LED will turn off
after slowly rotating the cycle selector knob
through ALL of its positions
If indicators do not turn off and beep after
pressing buttons and rotating the cycle
selector knob, go to TEST #2: User Interface
on page 14.
Exit Procedure
To exit User Interface Test, press and hold the
1st button used to activate Service Diagnostic
mode for 5 seconds, or press the POWER
button once or twice.
SOFTWARE VERSION DISPLAY
NOTE: The Software Version Display mode will
time out after 5 minutes of user inactivity and
return to standby mode.
Entry Procedure
To enter Software Version Display, press
and hold the 2nd button used to activate the
Service Diagnostic mode for 5 seconds. Upon
entry, the display will automatically cycle
through the following information:
•UI software revision code (u: major
revision number, minor revision number,
test revision number)
•UI Hex file revision code (h: major revision
number, minor revision number, test
revision number)
•CCU software revision code (c: major
revision number, minor revision number,
test revision number)
•CCU Hex file revision code (h: major
revision number)
•MCU software revision code (h: major
revision number)
Exit Procedure
To exit Software Version Display, press and
hold the 1st button used to activate Service
Diagnostic mode for 5 seconds, or press the
POWER button once or twice.

PAGE 6
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QUICK DIAGNOSTIC TEST
NOTE: The Service Diagnostic mode must be
activated before entering the Quick Diagnostic
Test; see procedure on page 4. If, at any point,
the user presses the POWER button, the
washer exits to standby mode.
Active Fault Code Display
in Quick Diagnostic Test
If the display begins flashing while in the Quick
Diagnostic Test, it is displaying an active fault
code. Active fault codes are codes that are
currently detected. Only one active fault code
can be displayed at a time.
iPress power button at any time to exit i
Entry Procedure
To enter the Quick Diagnostic Test, press and
release the 2nd button used to activate the
Service Diagnostic mode. The power button
indicator turns on and the start button indicator
begins to flash. Press the START button to
perform the Quick Diagnostics tests listed below.
Each test phase is indicated on the display.
IMPORTANT: If entry into Quick Diagnostics
is performed too quickly after activating the
Service Diagnostic mode, the test will not start.
Exit Procedure
To exit Quick Diagnostics, press the POWER
button, or press and hold the 1st button used
to activate Service Diagnostic mode for 5
seconds.
TEST
PHASE WA SHER FUNCTION COMPONENT PHASE ENDS…
C00 * Door lock motor is actuated. Door
unlocks, and then locks again.
Pump is activated for 15 seconds.* • Door Lock System• Drain Pump*
on completion ONLY.
C01 †
steam models
onlyHeater is turned on.
Steam valve is actuated.• Heater• Steam Valve
• Te mperature Sensoron completion or at key press.C02 Cold water valve will actuate. • Cold Water Valve
• Flow Meter (Steam only)on completion or at key press.
C03 Dispensing system is set to the Prewash position #1. • Dispenser Motor
• Dispenser Contacton completion ONLY.
C04 Hot water valve will actuate. • Hot Water Valve
• Flow Meter (Steam only)on completion or at key press.C05Drum rotates clockwise at wash speed. • Motor
• Motor Control Unit (MCU)on completion or at key press.C06 ‡ Heater is turned on to heat water
to pre-set temperature level.
Drum rotates clockwise and counter-
clockwise at wash speed.
Water valve is activated to fill drum to
minimum water volume required to
wash. (If there is enough water in the drum, the water valve will not turn on.) • Heater
• Te mperature Sensor• Motor • Motor Control Unit• Cold Water Valve (if needed)• Pressure Sensor/Switchon completion or at key press.C07Drain Pump is actuated until there is no
water in the system—plus an additional 15 seconds. • Drain Pump• Pressure Sensor/Switchon completion or at key press.Drum rotates counter-clockwise from 35
rpm > 100 rpm > 150 rpm > 100 rpm in
~ 1-1/2 minutes. • Motor • Motor Control Uniton completion ONLY.
Drum rotates counter-clockwise at
maximum speed.
Door lock motor is actuated. Door
unlocks. • Motor • Motor Control Unit• Door Lock Systemon completion or press of the
power button.
C08
QUICK DIAGNOSTIC TEST
QUICK DIAGNOSTIC TEST NOTES:
*C00 – For STEAM models, the drain pump is activated as part of the APS (Analog Pressure Sensor) calibration routine. For NON-STEAM
models, the drain pump is only activated if the CCU detects a significant amount of water in the tub. Drain time will depend on water in tub.
† C01 – This test phase is performed only on STEAM models. NON-STEAM models skip this test.
‡ C06 – This test will run until a pre-set temperature level is reached. Water temperature will affect the duration of the test.

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FAULT/ERROR CODES
(Refer to fault/error code charts on pages 8–10.)
Fault/Error Code Display Method
Fault codes are displayed by alternately
showing F# and E#. All fault codes have an
F# and an E#. The F# indicates the suspect
System/Category. The E# indicates the
suspect Component system.
Up to four Fault/Error codes may be stored.
When the oldest fault code is displayed,
additional presses of the 3rd button will result
in a triple beep, then display of the most recent
fault code. If each press of the 3rd button
results in a triple beep and the display shows
“888”, no saved fault codes are present.
Entry Procedure
To display the Fault/Error Codes, press and
release the 3rd button used to activate the
Service Diagnostic mode.
Advancing Through Saved Fault/
Error Codes
Procedure for advancing through saved
fault codes:
Press and release gbeep tone gmost recent fault
the 3rd button code is displayed.
used to activate
Service Diagnostics
Repeat gbeep tone gsecond most
recent fault code
is displayed.
Repeat gbeep tone gthird most
recent fault code
is displayed.
Repeat gbeep tone gfourth most
recent fault code
is displayed.
Repeat gtriple beep gback to the most
recent fault code.
EXITING SERVICE DIAGNOSTIC MODE
Use either of the two methods below to exit
diagnostic mode.
•Pressing and holding the 1st button
used to activate the Service Diagnostic
mode for 5 seconds.
•Pressing the POWER button once or twice,
depending on diagnostic procedure.
Clearing Fault Codes
To clear fault codes, enter Service Diagnostic
mode. Then press and hold the 3rd button
used to enter Service Diagnostic mode
for 5 seconds. Once the fault codes are
successfully erased, the seven segment
display will show “888”.
Exit Procedure
To exit Fault/Error Codes, press and hold the
1st button used to activate Service Diagnostic
mode for 5 seconds.

PAGE 8
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
FAULT/ERROR CODES #1 — The fault codes below may be indicated
under various conditions and can be accessed through Service Diagnostics.
Display EXPLANATION AND RECOMMENDED PROCEDURE
SudSUDS DETECTED
Fault is displayed when Suds prevent the basket from spinning up to speed or the pressure sensor detects
rising suds level. The main control will flush water in attempt to clear Suds. If the water flush is unable to
correct the
p
roblem, this ma
y
indicate:
Possible Causes
• Not using HE detergent or excessive detergent usage. • Check/clean drain pump filter and hose of foreign objects.
• Ensure drain height does not exceed 8' (2.4 m) from washer base.
F0E1 (rl) LOAD DETECTED DURING THE WASHER CLEANING CYCLE (rl = remove load)
During the cleaning cycle, a load was detected inside the drum. Clear error code and run a Cleaning Cycle
to verif
y
p
roblem.
Possible Causes
• Load inside the washer during clean cycle.
• Mechanical friction on drive mechanism or basket. (Clothing between basket and tub.)F1E1 CCU ERROR
A corrupted onboard EEPROM or communication error between the CCU and onboard EEPROM has occurred. One of the main rela
y
s is not workin
g
p
ro
p
erl
y
.
Possible Causes
• Check the electrical outlet for damage.
• A power surge/drop may have caused this problem. Unplug or disconnect washer. Verify power at outlet
(voltage, polarity, grounding, and dedicated circuit). Reconnect power and retest. • A relay on the CCU may be welded.See TEST #1 (CCU Power Check) on page 13.
F1E2 MCU ERROR - MULTIPLE RESETS
Motor Control Unit (MCU) has an internal malfunction, repeating under or over voltage, or over current
conditions. Can also be caused by momentary loss of neutral feed to MCU during the spin cycle. If the error occurs during a high-speed spin, the door will remain locked for 3 minutes. Possible Causes
• See TEST #3 (Motor Circuit) on page 15.
F2E3 UNSUPPORTED CYCLE
Cycle corruption, or CCU is not compatible for this specific model of washer.
Possible Causes
• Intermittent communication between CCU and UI. Check harness for continuity.
• Rotate cycle selector knob and verify cycle information on console. CCU may be corrupted.• CCU is not compatible with washer—replace CCU. F3E1 PRESSURE SWITCH / PRESSURE SENSOR ERROR
The CCU detects an out of range pressure signal. The use of analog pressure sensor or digital pressure
switch is model de
p
endent, but the
p
rocedure to detect this error does not chan
g
e.
Possible Causes
• Check connections from tub to air trap, air trap to pressure hose, and pressure hose to pressure sensor.
• See TEST #7 (Pressure Sensor/Switch) on page 17.
F3E2 TEMPERAT URE SENSOR ERROR
This error is displayed if the water temperature sensor value is out of range (23°F to 217°F [–5°C to 103°C]).
To find the correct ohm reading, refer to temperature chart on page 21.
Possible Causes
• See TEST #11 (Temperature Sensor) on page 21.
F4E0 HEAT ER IS NOT DETECTED
This error is generated when the CCU cannot detect the temperature rising during step C01 of the Quick Diagnostic Te st. This error code is available only in service diagnostics.
Possible Causes
• Heater element unplugged or open.
• See TEST #10 (Heating Element), page 20.
• See TEST #11 (Temperature Sensor), page 21.
Is pressure hose pinched, kinked, plugged, or leaking air?

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DO NOT REMOVE OR DESTROY
FAULT/ERROR CODES #2 — The fault codes below may be indicated
under various conditions and can be accessed through Service Diagnostics.
Display EXPLANATION AND RECOMMENDED PROCEDURE
F5E2 DOOR LOCK ERROR
At the start of a cycle, the washer attempts to lock the door 6 times. If door cannot be locked, the washer
goes into pause mode and a code is generated. This code is available only in service mode.
Possible Causes
• Door not completely closed due to interference. • Check door lock mechanism for damage, misalignment, or foreign objects. • See TEST #4 (Door Lock System) on page 16. F5E3 DOOR UNLOCK ERROR
At the start of a cycle, the washer attempts to unlock the door 6 times. If door cannot be unlocked, the washer
goes into pause mode and a code is generated. This code is available only in service diagnostics.
Possible Causes
• Verify door latch is secured to front panel.
• Check for misaligned, broken, or over-tightened door latch.
• See TEST #4 (Door Lock System) on page 16. F6E1 COMMUNICATION ERROR BETWEEN CCU AND MCU
Communication between the Central Control Unit and the MCU has not been detected.
Possible Causes
• Check door switch operation. Faulty switch may interfere with power to MCU. • Check drive system for worn or faulty components.• Verify continuity in cable between CCU (MI3 & MS2) and MCU. See wiring diagrams on pages 23–24.
• See TEST #1 (CCU Power Check) on page 13.
• See TEST #3 (Motor Circuit) on page 15.
F6E2 COMMUNICATION ERROR UI TO CCU
F6E3 COMMUNICATION ERROR CCU TO UI
Communication between Central Control Unit (CCU) and User Interface (UI) has not been detected.
Possible Causes
• Verify continuity in cable between CCU (UI7) and UI (C2). See wiring diagrams on pages 23–24. • Check AC and DC supplies. See TEST #1 (CCU Power Check) on page 13.
• See TEST #2 (User Interface) on page 14. F7E1 DRIVE MOTOR SPEED SENSING ERROR / WASHER OVERLOAD
The MCU is unable to properly detect motor speed and the washer shuts down. If error occurs during
high-spin, the door remains locked for 2–3 minutes.
Possible Causes
• Washer is overloaded.
• Verify that the shipping system, including shipping bolts and spacers, is removed.
• Mechanical friction – verify that drum rotates freely.
• See TEST #3 (Motor Circuit) on page 15.
F7E2 MCU OVERHEAT AND/OR MOTOR OVERHEAT
The heat sink exceeds 212°F (100°C). If this occurs, the CCU will reset the MCU and wait for the motor and/or the MCU to cool down before restarting. After 4 attempts, F7E2 is displayed.Possible Causes
• Improper installation of washer. Ensure that washer is not located near a heat source and has proper ventilation.
• Check that drum is not overloaded with clothes. • Mechanical friction – verify that drum rotates freely.
• Check drive system for worn or faulty components. See TEST #3 (Motor Circuit) on page 15. F5E1 DOOR SWITCH ERROR
This code is generated if the door has not been open for 3 consecutive cycles, or the door switch is open while the door is locked for more than 5 seconds. If this occurs during normal operation, the buzzer beeps
3 times. This error code is available only in service diagnostics.
Possible Causes
• User presses START without closing door.
• Door not open for 3 consecutive cycles.
• Door switch mechanism damaged or obstructed.• See TEST #4 (Door Lock System) on page 16.

PAGE 10
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
FAULT/ERROR CODES #3 — The fault codes below may be indicated
under various conditions and can be accessed through Service Diagnostics.
Display EXPLANATION AND RECOMMENDED PROCEDURE
F8E1 NO WATER DETECTED ENTERING WA SHER OR PRESSURE SWITCH TRIP NOT DETECTED
The washer does not detect water input after 13 minutes of filling.
Possible Causes
• Is water supply connected and turned on?
• Check for blocked or kinked inlet hoses.
• Low water pressure or blocked hose screens.
• Check for proper drain hose installation. Is water siphoning out of the drain hose? Drain hose must not
be more than 4.5" (113 mm) into drain pipe.
• Check connections from tub to air trap, air trap to pressure hose, and pressure hose to pressure sensor.
• See TEST #6 (Water Inlet Valves) on page 17.
• See TEST #7 (Pressure Sensor/Switch) on page 17.F8E2 DISPENSER SYSTEM ERROR
Dispenser motor is unable to reach the desired position. Possible Causes
• Check the mechanical linkage from dispenser motor to top of dispenser.
• See TEST #12 (Dispenser Distribution System) on page 21.
F8E3 OVERFLOW CONDITION
The overflow condition occurs if there is too much water or foam in the washer and the overflow contact
on the pressure switch is closed for more than 2 minutes, 30 seconds or 5 times during the same cycle.
If overflow occurs, the valves are closed and the drain pump switches on for at least 30 seconds.
Possible Causes
• Check inlet valves for proper shutoff.
• Verify that drain hose is not plugged or kinked.
• Check/clean drain pump filter of foreign objects. • Check connections from tub to air trap, air trap to pressure hose, and pressure hose to pressure sensor.
• See TEST #6 (Water Inlet Valves) on page 17.
• See TEST #7 (Pressure Sensor/Switch) on page 17.
• See TEST #8 (Drain Pump) on page 19.
F8E4 FLOW METER FAULT
If less than 0.1L of water has entered the tub after 30 seconds from the start of the Quick Diagnostic Te st, this error will be displayed. This error code is available only in service diagnostics.
Possible Causes
• Is water supply connected and turned on?
• Check for blocked or kinked inlet hoses.
• See TEST #6 (Water Inlet Valves) on page 17.
• See TEST #9 (Flow Meter) on page 20. F9E1 LONG DRAIN
If the drain time exceeds 8 minutes without reaching reset level in pressure sensor, the valves are turned
off and the drain pump will stop running. NOTE: Suds can cause delays in draining. Washer drains for
4 minutes, pauses 5 minutes, then tries again for 4 additional minutes of draining. F9E1 will display if washer
does not drain. (Normal drain takes less than 2 minutes)Possible Causes
• Verify that the drain hose is not blocked or kinked. • Make sure drain hose is not sealed into drain pipe.
• Make sure the drain hose height does not exceed 96" (2.4 m). • Check/clean drain pump filter of foreign objects. • Check connections from tub to air trap, air trap to pressure hose, and pressure hose to pressure sensor.
• See TEST #8 (Drain Pump) on page 19.
Is pressure hose pinched, kinked, plugged, or leaking air?Is pressure hose pinched, kinked, plugged, or leaking air?Is pressure hose pinched, kinked, plugged, or leaking air?F8E0 STEAM INLET VA LVE ERROR (Not available on all models)
This error is displayed when the steam valve malfunctions. This error can be seen only in service diagnostics.
Possible Causes
• Is water supply connected and turned on?
• Check for blocked or kinked inlet hoses.
• Low water pressure or blocked hose screens.
• Check steam valve operation. See TEST #6 (Water Inlet Valves) on page 17.

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DO NOT REMOVE OR DESTROY
TROUBLESHOOTING GUIDE #1
PROBLEM POSSIBLE CAUSE CHECKS & TESTS
No power to washer.Check power at outlet, check circuit breakers,
fuses, or junction box connections.
Connection problem between AC plug
and CCU. Check connections between the AC power cord and CCU for continuity.
Connections between CCU and UI. Check connections and harness continuity
between CCU and UI.
CCU problem.See TEST #1: CCU Power Check, pg. 13.
User interface problem.See TEST #2: User Interface, pg. 14.
Door lock mechanism not functioning. 1. Door not closed due to interference.
2. Lock not closed due to interference.
3. See TEST #4: Door Lock System, pg. 16.
Connections between CCU and UI.Check connections and harness continuity
between CCU and UI.
User interface problem.See TEST #2: User Interface, pg. 14.
CCU problem.See TEST #1: CCU Power Check, pg. 13.
Connections between CCU and UI.Check connections and harness continuity
between CCU and UI.
User interface problem. See TEST #2: User Interface, pg. 14.
CCU problem.See TEST #1: CCU Power Check, pg. 13.
Door not closed. Ensure that door is completely closed.
Door lock obstructed. Check mechanism for obstruction.
Door lock mechanism not functioning. See TEST #4: Door Lock System, pg. 16.
Reset washer.Unplug and reconnect the power cord. Wait 2
minutes to see if the washer door unlocks.
Misaligned, broken, or over-tightened
door latch. Check door lock mechanism and repair as necessary.
Door lock mechanism not functioning. See TEST #4: Door Lock System, pg. 16.
No water supplied to washer.1. Check water connections to washer.
2. Verify hot and cold supply is on.
Dispenser clogged with detergent. Clean obstruction from dispenser.
Valve problem.See TEST #6: Water Inlet Valves, pg. 17.
Dispenser system problem.See TEST #12: Dispenser Distribution System,
No water supplied to washer or low water
pressure. 1. Check water connections to washer.
2. Verify hot and cold supply is on.
Plugged filter/screen. Check for plugged filter or screen in the water
valve or hoses.
Drain hose installation. Check for proper drain hose installation.
Is water siphoning out of the drain hose?
Valve problem.See TEST #6: Water Inlet Valves, pg. 17.
Pressure sensor/switch problem.See TEST #7: Pressure Sensor/Switch, pg. 17.
Drain hose/filter is plugged. Check for hose and drain filter obstructions.
Valve(s) not shutting off. See TEST #6: Water Inlet Valves, pg. 17.
Pressure sensor/switch problem.See TEST #7: Pressure Sensor/Switch, pg. 17.
Drain pump problem.See TEST #8: Drain Pump, pg. 19.
Is door lock showing open during the cycle? See TEST #4: Door Lock System, pg. 16.
Harness connections.Check harness continuity and connections
between CCU > MCU > and drive motor.
Motor problem.See TEST #3: Motor Circuit, pg. 15.
Mechanical friction.Check for obstruction between spin basket
and outer tub.
Harness connections.Check harness continuity and connections
between CCU > MCU > and drive motor.
Motor problem. See TEST #3: Motor Circuit, pg. 15.
WON’T POWER UP
•No operation
• No keypad response
• No LEDs or displayWON’T START CYCLE
No response when Start
Button is pressed.
UI WON’T ACCEPT
SELECTIONS
WON’T FILL
(Normal water level is
only 2.5" to 5" [63.5 mm
to 127 mm] inside tub.)
DOOR WON’T LOCK
DOOR WON’T UNLOCK
(See pg. 22 for manually
unlocking the door lock
system.)
MOTOR OVERHEA T S
DRUM WON’T ROTATE
OVERFILLS
WON’T DISPENSE
pg. 21.
No hot water dispensed. Ensure that household hot water is present
at the tap. Minimum 120°F (49°C).
Te mperature sensor problem.See TEST #11: Te mperature Sensor, pg. 21.
Heater element problem. See TEST #10: Heating element, pg. 20.
SANITIZE LED DOES
NOT TURN ON

PAGE 12
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
TROUBLESHOOTING GUIDE #2
PROBLEM POSSIBLE CAUSE CHECKS & TESTS
Drain hose installation. Check for proper drain hose installation. Make
sure it is not inserted more than 4.5" (113 mm).
Plugged drain hose. Check drain hose for obstructions.
Obstructions to drain pump. Check and clean drain filter for obstructions.
Harness connections.Check harness continuity and connections
between CCU and drain pump.
Drain pump problem.See TEST #8: Drain Pump, pg. 19.
Water hose installation. Make sure inlet hoses are connected properly
and valves are turned on fully.
No hot water dispensed. Ensure that household hot water is present
at tap. Minimum: 120°F (49°C)
Heating element problem.See TEST #10: Heating Element, pg. 20.
Te mperature sensor problem.See TEST #11: Te mperature Sensor, pg. 21.
Supply hose connections.Check hose connections and damaged rubber
gasket due to over-tightening.
Drain hose installation. Check for proper drain hose installation.
Plugged drain hose. Check drain hose for obstructions.
Overloading the washer.Overloading can partially push door open.
Internal hose connections.Check internal hose connections for leakage.
Check bellows.Remove, reposition, and reinstall the bellows.
Make sure bellows is not wrinkled.
Shipping kit not removed. Verify shipping bolts and spacers are removed.
Washer not level. Level washer per installation instructions.
Floor stability. Weak floors can cause vibration and walking
of the washer.
Rubber feet not installed. Install rubber feet on leveling legs.
Leveling lock nuts not tightened. Tighten leveling lock nuts.
High-pitched noise. May be caused by clogged inlet screens.
Disconnect hoses and clean screens.
Spring/damper installation. Check for proper spring and damper placement
and installation.
Hardware. Inspect panels for bending, warpage, or damage.
Check for loose hardware.
Oversuds.1. Verify use of HE detergent.
2. Excessive detergent usage.
3. Check drain hose and filter for obstructions.
Incorrect water level. See “WON'T FILL”, pg. 11 .
Clothes wet after cycle is complete. 1. Single or tangled items in washer.
2. Oversuds (see above).
3. See “WON’T DRAIN”, above.
Load not rinsed. 1. Check proper water supply.
2. Not using HE detergent.
3. Washer not loaded properly.
4. See TEST #6: Water Inlet Valves, pg. 17.
Not cleaning clothes.1. Washer not loaded properly.
2. Not using HE detergent.
3. Not using correct cycle.
4. Not using dispensers.
Fabric damage. 1. Washer overloaded.
2. Bleach added incorrectly.
3. Sharp items in tub.
Wrong option or cycle selection. Refer customer to “Use & Care Guide”.
WON’T DRAIN
INCORRECT WATER
TEMPERAT URE
POOR WA SH
PERFORMANCE
Please reference
Use & Care Guide
VIBRATION OR NOISE
LEAKING
Door switch problem.See TEST #4: Door Lock System, pg. 16.
Harness connections.Check harness continuity and connections
between UI and drum light.
Drum light problem.See TEST #5: Drum Light, pg. 16.
DRUM LIGHT DOES
NOT TURN ON
(Steam models only)

PAGE 13
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
TEST PROCEDURES
IMPORTANT: The following procedures
may require the use of needle probes
to measure voltage. Failure to use needle
probes will damage the connectors. To
ease the process of measuring voltage
and resistance, test points for each pin are
accessible through the slots in the plastic
beneath each CCU connector.
TEST #1: CCU Power Check
This test checks for incoming and outgoing power
to and from Central Control Unit (CCU). This test
assumes that proper voltage is present at the outlet.
1. Unplug washer or disconnect power.
2. Remove top panel to access the
machine electronics.
3. Visually check that all connections to the
interference filter (IF) are securely connected.
See Figure 3, below.
4. Visually check that all connections to the
CCU are fully inserted. See Figure 4, below.
5. If both visual checks pass, go to step 6.
DL3-Door Lock Coil •= pin-1
6. Plug in washer or reconnect power.
7. With a voltmeter set to AC, check for line
voltage at the input of the interference filter.
See Figure 3.
If line voltage is present, go to step 8.
If line voltage is not present, verify the
continuity of the power cord. If it fails the
continuity check, replace the power cord.
8. With a voltmeter set to AC, check for line
voltage at the output of the interference filter.
See Figure 3.
If line voltage is present, go to step 9.
If line voltage is not present, replace the
interference filter.
9. With a voltmeter set to AC, check for input
line voltage to the CCU across pins 1 and 2 of
connector IF2. See Figure 4.
If line voltage is present, go to step 10.
If line voltage is not present, check
harnesses and connections between the
filter and the CCU. Repair as necessary.
RP2 VFS2
DI6-Detergent Dispenser Motor
FM3-Flow Meter (steam model)
DCS3-Door Closed Switch
PS8-Pressure
Sensor/Switch
SET2-Temperature
Sensor
UI7-User Interface
MI3-MCU
Communications
DP2-Drain Pump
RP2-Vent Fan
VCH7-Hot/Cold Valves
VFS2-Steam Valve (steam model)
MS2-MCU Power
IF2-Interference
Filter
DLS2-Door
Lock Switch
HE2-Heater
Element
Figure 4 - Central Control Unit (CCU)
Figure 3 - Interference Filter (IF)
Filter Output - Line (PK)
Filter Input - Power Cord Line (BK) Filter Input - Power Cord Neutral (WT)
Filter Output - Neutral (PK)
Locking Tab

PAGE 14
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
10. DC Supplies
•+5V DC is used to power IC’s and
processors on the circuit boards. If +5 V DC
was missing, the washer would become
unresponsive. To verify +5V DC ± 5%,
measure voltage at UI7 pin 7 (GND) to pin 2
(+5V [Vcc]). (Red lead to Vcc.)
•+12V DC is used to actuate most of the
120V AC relays, triacs, and switches on the
CCU. If +12V DC was missing, the motors,
valves, and pumps would not turn on. To
verify +12V DC ± 5%, measure voltage
at UI7 pin 3 (–7V) to pin 2 (+5V [Vcc]).
(Red lead to Vcc.)
Troubleshooting: Refer to the wiring diagrams
on pages 23–24 when troubleshooting the DC
supplies. If +5 or +12 V DC is missing on
the CCU, unplug washer or disconnect power,
and then disconnect all components from the
CCU relying on that supply. Plug in washer or
reconnect power and check if the DC supply
has returned. If not, replace the CCU. If it has,
turn washer off and reconnect one connector
at a time until the component loading down
that supply has been identified.
11. Unplug washer or disconnect power.
12. Reassemble all parts and panels.
13. Perform the “Quick Diagnostic Test”
on page 6 to verify repairs.
TEST #2: User Interface (UI)
This test is performed when any of the
following situations occurs during the
User Interface Test (see page 5):
3None of the indicators or display turn on
3Some buttons do not light indicators
3No beep sound is heard
None of the indicators or display turn on:
1. Unplug washer or disconnect power.
2. Remove the top panel to access the CCU.
3. Visually check that all CCU connectors are
inserted all the way into the CCU. See Figure 4.
4. Remove console assembly. Do not pull
on the wires between the console and CCU.
5. Visually check that all UI connectors are
inserted all the way into the UI. See Figure 5.
6. Visually check that the UI and housing
assembly is properly inserted into the front
console.
7. If all visual checks pass, perform TEST #1: CCU
Power Check, page 13, to verify supply voltages.
If supply voltages are present, replace the
user interface and housing assembly.
If supply voltages are not present, replace
the CCU.
8. Reassemble all parts and panels.
Figure 5 - User Interface (UI), Housing Assemblies, and Cabling
Console/Housing Assembly P02 - to CCU
P02
P13 -
to
Drum
Light
P13
To Drum
Light
P12
P09
P08 P06
P07
To CCU
NOTE:
The User Interface (UI) must be replaced
as an assembly. The UI includes the Modifier
and Center PCBs, and housing assemblies.
Modifier PCB Center PCB

PAGE 15
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
NOTE: If the harness between the CCU and
MCU is removed or communications are
interrupted during operation, the MCU puts
the motor into a braking mode, resulting in a
significant drag on the drum when turned by
hand. This mode can be cleared by removing
power from the washer for a few seconds.
1. Check the motor and electrical connections
by performing the “Quick Diagnostic Test” on
page 6. The following steps assume that this
step was unsuccessful.
2. Unplug washer or disconnect power.
3. Check to see if basket will turn freely.
If basket turns freely, go to step 4.
If basket does not turn freely, determine what
is causing the mechanical friction or lockup.
4. Remove the top and rear panels to access
the machine electronics and motor components.
5. Visually check that connectors MS2 and MI3
are inserted all the way into the CCU. Refer to
CCU diagram on page 13.
If visual checks pass, go to step 6.
If visual checks fail, reconnect MS2 and
MI3, and repeat step 1.
6. Visually check that all connectors are inserted
all the way into the MCU (see Figure 6, at left).
If visual checks pass, go to step 7.
If visual checks fail, reconnect the
MCU connectors and repeat step 1.
7. Check the motor windings. Disconnect the
motor harness from the MCU. With an ohmmeter,
verify the resistance values as shown below:
If the values are outside the range or open,
replace stator assembly; otherwise, reconnect
the motor harness and go to step 8.
8. Check the two harnesses between the
CCU and MCU for continuity.
If there is continuity, go to step 9.
If there is no continuity, replace the main
lower harness.
9. With a voltmeter set to AC, connect the
leads across pins 1 and 2 of connector MS2.
10. Plug in washer or reconnect power.
11. Run the “Quick Diagnostic Test” on page
6. IMPORTANT: Door must be closed and
locked to run motor.
Motor Harness Windings
Pins 1 & 2 8.5 - 14.0 ΩPins 2 & 3 8.5 - 14.0 ΩPins 1 & 3 8.5 - 14.0 Ω
9. Plug in washer or reconnect power.
10.Perform the “User Interface Test”
(see page 5) to verify repair.
Some buttons do not light indicators:
1. Unplug washer or disconnect power.
2. Remove the top panel to access the CCU
and User Interface (UI).
3. Visually check that the UI and housing
assembly is properly inserted into the front
console.
4. If visual check passes, replace the UI and
housing assembly.
5. Reassemble all parts and panels.
6. Plug in washer or reconnect power.
7. Perform the “User Interface Test”
(see page 5) to verify repair.
No beep sound is heard:
1. Unplug washer or disconnect power.
2. Remove the top panel to access the CCU.
3. Visually check that all CCU connectors are
inserted all the way into the CCU. See Figure 4.
4. Remove console assembly. Do not pull
on the wires between the console and CCU.
5. Visually check that all UI connectors are
inserted all the way into the UI. See Figure 5.
6. If all visual checks pass, replace the UI
and housing assembly.
7. Perform the “User Interface Test”
(see page 5) to verify repair.
TEST #3: Motor Circuit
This test checks the motor, motor control unit
(MCU), and wiring.
IMPORTANT: A guide (W10271535) is
required to assemble the rotor onto the shaft.
The guide is inserted into the threaded hole,
and then the rotor is slid on over the guide.
From CCU MI3
(MCU Communications) From CCU MS2
(MCU Power)
To Motor
Figure 6 - Motor Control Unit (MCU)
Locking Tab

PAGE 16
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
If any of the measurements do not match the
values shown in the chart, check the harness
of the suspected component between the
CCU and door lock mechanism for continuity.
If the harness and connections are
good, replace the door lock mechanism.
IMPORTANT: To minimize risk of damage
to door lock/switch wires, remove the door
lock mechanism screws before removing
the front panel.
6. If the preceding steps did not correct the
lock problem, replace the CCU and retest door
lock mechanism.
Unplug washer or disconnect power.
Replace the CCU.
Reassemble all parts and panels.
Perform the “Quick Diagnostic Test”
on page 6 to verify repair.
TEST #5: Drum Light (Steam Models)
This test is performed if the drum LED does
not light.
1. On Whirlpool models, pressing the “Drum
Light” button on the console should toggle the
button indicator on and off.
If the button indicator does not turn on, go
to TEST #2 – “Some buttons do not light
indicators” on page 14.
If the button indicator toggles on and off,
go to step 2.
2. Unplug washer or disconnect power.
3. Remove the top panel to access CCU
and user interface (UI).
4. Verify the drum light connector (P13)
is securely connected to the UI. See Figure 5.
5. Check harness and connections between
the drum light and the UI.
If the connections are OK, go to step 6.
If not, repair or replace as needed.
6. Unplug the drum light connector (P13)
from the UI.
7. Plug in washer or reconnect power.
8. On Whirlpool models, press the “Drum
Light” button on the console until the button
indicator is on. On Maytag models, press and
hold the “Steam for Stains/Drum Light” button
on the console to activate the LED circuit.
9. With a multimeter set to milliamps, measure
the current across UI connector P13, pins 1
12. When the test shows “C05 & C08” on the
display, the motor is powered and line voltage
from the CCU should be present across pins
1 & 2 of connector MS2.
If line voltage is present, replace the MCU.
If line voltage is not present, replace the CCU.
13. Unplug washer or disconnect power.
14. Reassemble all parts and panels.
15. Perform the “Quick Diagnostic Test”
on page 6 to verify repair.
TEST #4: Door Lock System
Perform the following checks if the washer
does not lock (or unlock).
1. Check lid lock mechanism for obstruction
or binding. Repair as necessary.
2. Unplug washer or disconnect power.
3. Remove top panel to access machine
electronics.
4. Visually check that the DL3, DLS2, and
DCS3 connectors are inserted all the way into
the CCU. Refer to CCU diagram on page 13.
If visual check passes, go to step 5.
If any of the connectors are not inserted
properly, reconnect and retest door lock.
5. Referring to the chart below, disconnect
the specified connectors from the CCU. With
an ohmmeter, verify resistance values listed
in the chart. NOTE: To measure the door lock
switch in the “locked” position, plug in washer
or reconnect power. Press the POWER button,
select any cycle, and then press START.
Actuation of the door lock solenoid should be
heard. At that point, unplug the washer and
disconnect DLS2 from the CCU and measure
resistance across pins 1 & 2.
If resistance values are good, go to step 6.
Component
Door Switch DCS3-1 DCS3-3
DL3-1 DL3-2
DL3-2 DL3-3
Door Lock
Switch DLS2-1 DLS2-2
Locked = Continuity
Unlocked = Open Circuit
Resistance
Lock Coil = 50–74 ΩDoor Lock
Coils
Contacts
Measured
DOOR LOCK RESISTANCE
Door Closed = Continuity
Door Open = Open Circuit
Lock Coil = 50–74 Ω

PAGE 17
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
4. Plug in washer or reconnect power.
5. With a voltmeter set to AC, attach the
leads across the pins of the suspect valve
(see chart in step 3). Run the “Quick
Diagnostic Test” and check for line voltage
across the pins of the valve. NOTE: Refer
to the “Quick Diagnostic Test” on page 6
to determine when the cold, hot, and steam
valves are actuated. (Example: Cold valve is
actuated during test phase C02.)
If line voltage is present and valve still does
not activate, replace valve assembly.
If line voltage is not present, replace the CCU.
6. Unplug washer or disconnect power.
7. Reassemble all parts and panels.
8. Perform the “Quick Diagnostic Test”
to verify repairs.
TEST #7: Pressure Sensor/Switch
Pressure Sensor (Steam Models)
This test checks the pressure sensor, CCU,
and wiring. NOTE: Usually, if the pressure
sensor malfunctions, the washer will generate
a long fill or long drain error.
1. Check the functionality of the pressure
sensor by running a small load cycle. The
valves should turn off automatically after
sensing the correct water level in the tub.
The following steps assume that this step
was unsuccessful.
2. Press START/PAUSE to stop the cycle and
then press POWER. The cycle will cancel and
drain the water from the tub.
3. Unplug washer or disconnect power.
Figure 7 - Pressure Sensor
and 3. If the drum LED driver is working
properly, you should measure 150–370 mA.
If the current is present, replace
the drum LED.
If the current is not present, replace the UI.
10. Unplug washer or disconnect power.
11. Reassemble all parts and panels.
Water Level Controls
3Water Inlet Valves – Test #6
3Pressure Sensor/Switch – Test #7
3Drain Pump – Test #8
3Flow Meter – Test #9
TEST #6: Water Inlet Valves
This test checks the electrical connections
to the valves and the valves themselves.
1. Check the relays and electrical connections
to the valves by performing the “Quick Diagnostic
Test” on page 6. The following steps assume
one or more of the valves did not turn on.
2. For the valve(s) in question, check the
individual solenoid coils:
a. Unplug washer or disconnect power.
b. Remove top panel to access machine
electronics.
c. Remove connector VCH7 from the CCU,
and if a steam model, connector VSF2. Refer
to CCU diagram on page 13.
d. Check harness connections to the
solenoid valves. Verify continuity in harness
between CCU and solenoid valves.
3. Check valve coil resistance at the valves,
or across the following VCH7 and VSF2
connector pinouts:
* Steam model only
Resistance should be 890–1.1k Ω.
If resistance readings are outside the range
or open, replace the valve assembly.
If resistance readings are within range,
reconnect VCH7 and, if applicable, VSF2
to CCU. Go to step 4.
Va lvePinout
Cold Fill ValveVCH7, pins 1 & 3
Hot Fill ValveVCH7, pins 5 & 7
Steam Valve * VSF2, pins 1 & 3
Pressure Sensor
Harness Connector
Pressure Hose
Connector

PAGE 18
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
Pressure Switch (Non-Steam Models)
This test checks the pressure switch, CCU,
and wiring. NOTE: Usually, if the pressure
switch malfunctions, the washer will generate
a long fill or long drain error.
1. Check the functionality of the pressure
switch by running a small load cycle. The valves
should turn off automatically after sensing the
correct water level in the tub. The following
steps assume that this step was unsuccessful.
2. Press START/PAUSE to stop the cycle and
then press POWER. The cycle will cancel and
drain the water from the tub.
3. Unplug washer or disconnect power.
4. Remove top and rear panels to access tub,
air trap, and pressure hose connections. Pressure
switch is located at top right rear of cabinet.
5. Check connections from tub to air trap,
air trap to pressure hose, and pressure hose
to pressure switch.
6. Check to ensure hose is routed correctly in
the lower cabinet and not pinched or crimped.
7. Verify there is no water, suds, or debris
in the hose or air trap. Disconnect hose from
pressure switch and blow into hose to clear
water, suds, or debris.
8. Check hose for leaks. Replace if needed.
Figure 8 - Pressure Switch
Heater Trip Wash Level Vcc Overflow
CCU PS8 Pinout 6543
Press Sw Pinout 12 14 11 16
No Pressure Closed Open Ref Open
Light Pressure Open Closed Ref Open
Medium Pressure Open Closed Ref Closed
Pressure Switch Check
4. Remove top and rear panels to access tub,
air trap, and pressure hose connections. Pressure
sensor is located at top right rear of cabinet.
5. Check connections from tub to air trap,
air trap to pressure hose, and pressure hose
to pressure sensor.
6. Check to ensure hose is routed correctly in
the lower cabinet and not pinched or crimped.
7. Verify there is no water, suds, or debris
in the hose or air trap. Disconnect hose from
pressure sensor and blow into hose to clear
water, suds, or debris.
8. Check hose for leaks. Replace if needed.
9. Visually check that connector PS8 is
inserted all the way into the CCU (refer to
CCU diagram on page 13). Also check that
the pressure sensor harness is securely
connected to the sensor.
10. Check the harness between the CCU and
Pressure Sensor for continuity.
If there is continuity, go to step 11.
If there is no continuity, repair or replace
as necessary.
11. Plug in washer or reconnect power.
12. With a voltmeter set to DC, connect black
probe to CCU connector PS8, pin 8 (GND) and
red probe to PS8, pin 4 (+5V [Vcc]).
If +5V DC is present, replace the pressure
sensor.
If+5V DC is not present, perform TEST
#1: CCU Power Check on page 13.
13. If the preceding steps did not correct the
problem, replace the CCU.
Unplug washer or disconnect power.
Replace the CCU.
Reassemble all parts and panels.
Perform the “Quick Diagnostic Test”
on page 6 to verify repair.
Pressure Switch
Harness Connector
Pressure Hose
Connector

PAGE 19
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
9. Visually check that connector PS8 is
inserted all the way into the CCU (refer to
CCU diagram on page 13). Also check that
the pressure switch harness is securely
connected to the switch.
10. Check the harness between the CCU and
Pressure Switch for continuity.
If there is continuity, go to step 11.
If there is no continuity, repair or replace
as necessary.
11. Disconnect PS8 from the CCU and
perform the continuity checks listed in the
chart on page 18. This check can also be
performed at the pressure switch.
a.With no pressure to the switch, there
should be continuity across PS8, pins 4
& 6 (switch pins 11 & 12).
b.Lightly blow into the pressure switch until
a “click” is heard. Maintain that pressure and
verify that there is continuity across PS8, pins
4 & 5 (switch pins 11 & 14).
c.Strongly blow into the pressure switch.
Maintain that pressure and verify that there is
continuity across PS8, pins 4 & 3 (switch pins
11 & 16).
If the pressure switch passes the continuity
check, go to step 12.
If not, replace the pressure switch and
perform step 1 to verify repair.
12. If the preceding steps did not correct the
problem, replace the CCU.
Unplug washer or disconnect power.
Replace the CCU.
Reassemble all parts and panels.
Perform the “Quick Diagnostic Test”
on page 6 to verify repair.
TEST #8: Drain Pump
Perform the following checks if washer does
not drain.
1. Check for obstructions in the usual areas.
Clean and then perform step 2.
2. Check the drain pump and electrical
connections by performing the “Quick
Diagnostic Test” on page 6. The following
procedures assume that this step was
unsuccessful.
3. Unplug washer or disconnect power.
4. Remove top panel to access machine
electronics.
5. Visually check that the DP2 connector is
inserted all the way into the CCU. Refer to
CCU diagram on page 13.
If visual check passes, go to step 6.
If connector is not inserted properly,
reconnect DP2 and repeat step 2.
6. Remove connector DP2 from the CCU.
With an ohmmeter, measure the resistance
across pins 1 and 2.
7. Resistance should be approximately 16 Ω.
If the reading is infinite (open), go to step 8.
If the reading is correct, go to step 12.
8. Remove the front panel to access drain
pump. Verify pump is free from obstructions.
9. Visually check the electrical connections
at the drain pump.
If visual check passes, go to step 10.
If connections are loose, reconnect the
electrical connections and repeat step 2.
10. With an ohmmeter, check harness for
continuity between the drain pump and CCU.
If there is continuity, go to step 11.
If there is no continuity, replace the lower
machine harness and repeat step 2.
11. With an ohmmeter, measure the resistance
across the two pump terminals. Resistance
should be approximately 16 Ω.
If the reading is infinite (open), replace the
drain pump assembly.
If the reading is correct, go to step 12.
12. If the preceding steps did not correct the
drain problem, replace the CCU.
Unplug washer or disconnect power.
Replace the CCU.
Reassemble all parts and panels.
Perform the “Quick Diagnostic Test”
on page 6 to verify repair.

PAGE 20
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
9. If the preceding steps did not correct the
drain problem, replace the CCU.
Unplug washer or disconnect power.
Replace the CCU.
Reassemble all parts and panels.
Perform the “Quick Diagnostic Test”
on page 6 to verify repair.
Water Temperature Controls
3Heating Element – Test #10
3Temperature Sensor – Test #11
TEST #10: Heating Element
This test checks the heating element, wiring,
and CCU.
1. Unplug washer or disconnect power.
2. Remove top panel to access machine
electronics.
3. Disconnect connector HE2 from the CCU.
Refer to CCU diagram on page 13.
4. Using an ohmmeter, measure the resistance
across pins 1 and 2 of connector HE2.
If the resistance is between 10-20 Ω, the
heating element and wiring are good; go
to step 8.
If the resistance is open, go to step 5.
5. Remove back panel to access the heating
element.
6. Disconnect the wire connectors from the
heating element. See Figure 9, page 21.
7. Using an ohmmeter, measure the
resistance across the two heating element
terminals.
If the resistance is between 10-20 Ω, the
heating element is good; replace the lower
main harness.
If the resistance is open, replace the
heating element.
8. If the preceding steps did not correct the
heating element problem, replace the CCU.
Unplug washer or disconnect power.
Replace the CCU.
Reassemble all parts and panels.
Perform the “Quick Diagnostic Test”
on page 6 to verify repair.
TEST #9: Flow Meter (Steam Model)
This test checks the electrical connections
to the flow meter and the flow meter itself.
1. Perform the “Quick Diagnostic Test” on
page 6. If error code F8E4 is generated, the
washer is detecting less than 0.1L of water
after 30 seconds of starting the test.
Go to step 2.
2. Did the valve(s) turn on and was water
seen and heard entering the drum?
No, the valve(s) did not turn on. Go to
TEST #6: Water Inlet Valves on page 17.
Yes, the valve(s) turned on, but no water
entered the drum. Go to step 3.
Yes, the valve(s) turned on and water
entered the drum. Go to step 4.
3. Verify that the hot and cold water inlet hoses
are properly connected to the washer and the
valves are turned on fully. Ensure the inlet hoses
are not kinked or inlet screens blocked.
4. Unplug washer or disconnect power.
5. Remove top panel to access machine
electronics.
6. Visually check that connector FM3 is
inserted all the way into the CCU. Refer
to CCU diagram on page 13.
If visual check passes, go to step 7.
If connector is not inserted properly,
reconnect FM3 and repeat step 1.
7. With an ohmmeter, check the harness
between the CCU (FM3) and flow meter
for continuity.
If there is continuity, go to step 8.
If there is no continuity, replace the flow
meter harness.
8. With voltmeter set to DC, connect leads
to FM3 pins 1 and 3. Run a wash cycle and
measure the flow meter voltage when the inlet
water valves open and water is entering the
washer. A nominal reading of approximately
200mV should be measured when water
is flowing through the flow meter (voltage
will vary depending on household water
pressure). No water flowing = 0V.
If voltage is present, the flow meter is
working properly. Go to step 9.
If voltage is not present when water is
entering the washer, replace the flow meter.