Diagnostic Guide; Service Diagnostic Mode; Activating Service Diagnostic Mode; User Interface - Whirlpool WFW94HEX Technical Education

COMPONENT TESTING (continued)
FOR SERVICE TECHNICIAN'S USE ONLY

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 �me-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 sensi�vity of
20,000 Ω per 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 inser�on.
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.
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.
1st Button
2nd Button
3rd Button
SERVICE DIAGNOSTIC MENU TABLE
Button Press
- Momentary press
- Press and hold for 5 secs.
- Momentary press
- Press and hold for 5 secs.
- Momentary press
- Press and hold for 5 secs.

SERVICE DIAGNOSTIC MODE

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 washer with these tests
before going to specific troubleshoo�ng tests.

ACTIVATING SERVICE DIAGNOSTIC MODE

1. Be sure the washer is in standby mode
(plugged in with all indicators off).
2. Select any three bu�ons and follow
the steps below, using the same bu�ons
(remember the bu�ons and the order that the
bu�ons were pressed):
Within 8 seconds,
• Press and Release the 1st selected bu�on,
• Press and Release the 2nd selected bu�on,
• Press and Release the 3rd selected bu�on;
• Repeat this 3 bu�on sequence 2 more �mes.
3. If this test mode has been entered
successfully, all indicators on the console are
illuminated for 5 seconds with " 888 " showing
in the Es�mated Time Remaining three-digit
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 diagnos�c mode will �me
out a�er 5 minutes of user inac�vity, or shut
down if AC power is removed.
Function Behavior
- Activates User Interface Test
- Exits Service Diagnostics
- Activates Quick Diagnostics
- Software Version Display
- Displays Next Error Code
- Clears the Error Codes
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