Instruction for Use

PAGE 3
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
ABBREVIATIONS
ACU: Appliance Control Unit
UI: User Interface (PCB & housing)
ICONS
Door is unlocked (door lock failure)
Water supply is inadequate
Water cannot be drained
Service is needed
DIAGNOSTIC GUIDE
Before servicing, check the following:
Make sure there is power at the wall outlet.
Has a household fuse blown, or circuit
breaker or GFCI tripped? Was a regular fuse
used? Inform customer that a time-delay fuse
is required.
Is cold water faucet open and water supply
hose unobstructed?
Make sure drain hose is not sealed into
drain pipe, and that there is an air gap
for ventilation.
All tests/checks should be made with a
VOM (volt-ohm-milliammeter) or DVM
(digital-voltmeter) having a sensitivity 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 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.
IMPORTANT: Voltage checks must be made
with all connectors attached to the boards.
SERVICE DIAGNOSTIC MODE
Allows service personnel to run the Service
Test Cycle to verify inputs to the washer and
functionality of the washer control. You may
want to do a quick and overall checkup of
the washer with this test before going
to specific troubleshooting tests.
ACTIVATING SERVICE DIAGNOSTIC MODE
IMPORTANT: Use Service Diagnostic Mode
without laundry in the washer.
1. Be sure the washer is in standby mode
(plugged in with all indicators off).
2. Open and close the washer door.
3. Press and hold POWER until the washer
display turns on with indicators scrolling from
left to right. When the time remaining display
turns on, within 60 seconds:
4. Press and hold OPTIONS while pressing
DELAY WASH 4 times within 5 seconds.
The control will enter Service Diagnostic
Mode. The display will show “CS” for Service
Test Cycle. Rotating the cycle selector knob
will toggle the display between “CS” (Service
Test Cycle) and “CF” (Factory Test Cycle).
Select “CS”. Press the flashing START
button. All display indicators will turn on.
DO NOT SELECT OR RUN “CF” (FACTORY
TEST CYCLE). IT REQUIRES THE FACTORY
ENVIRONMENT AND TEST EQUIPMENT.
IF “CF” IS RUN, IT COULD GENERATE A
FALSE FAILURE CODE (F##) THAT WILL
BE SAVED TO THE ERROR HISTORY.
Activation with Saved Fault Codes
If there is a saved fault code, the F number
will be shown in the display. Review the Fault/
Error Codes beginning on page 6 for the
recommended procedure and how to display
saved error codes. If there is no saved fault
code, “F - -” will be displayed.
Press and hold START to run the Service
Test Cycle (see pages 4 and 5).