Service Manual

DIAGNOSTICS & TROUBLESHOOTING
Whirlpool Smart All-In-One Washer & Dryer
n
2-3
For Service Technician Use Only

ACU: Appliance Control Unit
Human-Machine Interface

Before servicing, check the following:
n Make sure there is power at the wall outlet.
n Has a household fuse blown, or circuit breaker or GFCI
tripped? Was a regular fuse used? Inform customer that a
me-delay fuse is required.
n Is cold water faucet open and water supply hose
unobstructed?
n Make sure drain hose is not sealed into drain pipe, and that
there is an air gap for venlaon.
n All tests/checks should be made with a VOM (volt-
ohm-milliammeter) or DVM (digital-voltmeter) having a
sensivity of 20,000 Ω per volt DC or greater.
n Resistance checks must be made with washer/dryer
unplugged or power disconnected.
n  Avoid using large diameter probes when
checking harness connectors as the probes may damage
the connectors upon inseron.
n Check all harnesses and connecons before replacing
components. Look for connectors not fully seated, broken
or loose wires and terminals, pin inseron, or wires not
pressed into connectors far enough to engage metal barbs.
n A potenal cause of a control not funconing is corrosion
or contaminaon on connecons. Use an ohmmeter to
check for connuity across suspected connecons.
n  Voltage checks must be made with all
connectors aached to the boards.

Allows service personnel to run the Service Test Cycle to verify
inputs to the washer/dryer and funconality of the washer/
dryer control. You may want to do a quick and overall checkup
of the washer/dryer with this test before going to specic
troubleshoong tests.

 
 Use Service Diagnosc Mode without laundry in
the washer/dryer.
1. Be sure the washer/dryer is in standby mode (plugged in
with all indicators o).
2. Open and close the washer/dryer door.
3. Press and hold POWER unl the washer/dryer display
turns on. Aer approximately 1 minute, the home screen
will display.
4. 
Within 8 seconds,
- Press and release the HOME buon ( )
- Press and release the FAVORITES buon ( )
- Press and release the TOOLS buon ( )
- Repeat this 3 buon sequence 2 more mes
The WARNING DIAGNOSTIC MODE screen will display.
Touch ENTER to enter diagnosc mode. The DIAGNOSTIC
HOME screen will be displayed. To connue with the tests
in Service Diagnosc Mode, see below.

a. Press the TOOLS buon -
b. From the TOOLS menu, scroll down to “INFO.”
c. From the INFO menu, select “SERVICE & SUPPORT.”
d. From the SERVICE INFO screen, Press and hold the
DIAGNOSTICS buon unl the “ENTER PASSWORD”
screen is displayed.
e. From the ENTER PASSWORD screen, input “123, 123,
123,” and press “ENTER.”
f. The WARNING DIAGNOSTIC MODE screen will display.
Touch ENTER to enter diagnosc mode. The DIAGNOSTIC
HOME screen will be displayed. To connue with the tests
in Service Diagnosc Mode, see below.

If there is a saved fault code, the F number will be shown in
the display. Review the Fault/Error Codes beginning on page
2-6 for the recommended procedure and how to display saved
error codes.
To exit Service Diagnosc Mode, scroll to the top of the
DIAGNOSTICS HOME screen, press the < buon in the top le
corner of the screen twice, and then press the  buon.
NOTE: Service Diagnosc Mode mes out aer 5 minutes of
user inacvity.

If entry into Service Diagnosc Mode is unsuccessful, refer to
the following indicaons and acons:
The display does not turn on.
 Make sure AC power is available to the washer/dryer.
Check user interface operaon (see Test #2, page 3-6).
 Display is on, but unable to enter Service
Diagnosc Mode.
 Press and hold POWER to turn o the washer/dryer
display. Wait 10 seconds. Press and hold POWER again to turn
on the washer/dryer display. Follow the Acvang Service
Diagnosc Mode instrucons on this page.

NOTE: The Service Diagnosc Mode must be acvated before
performing the tests; see procedure on this page.

All indicators turn on and the display shows acve fault code
“F#E#.”

To exit the Service Test Cycle, scroll to the top of the
DIAGNOSTICS HOME screen, press the < buon in the top le
corner of the screen twice, and then press the  buon.