Whirlpool WTW9500E SERIES Service Manual page 36

TESTING COMPONENT
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.
TEST #4: Keys and Encoders
Keys and Encoders Test:
This test is performed when any of the following situations
occurs during "Key Activation & Encoder Test" on page 2-3.
n One or more indicators do not light up
n Some buttons do not toggle indicators
n No audio feedback is heard
One or more indicators do not light up:
1. Unplug washer or disconnect power.
2. Access the console's electronic assemblies and visually
check that the ACU J18 and UI J17 connectors are
inserted all the way into the main control and that the UI
harness connector is fully seated on the UI. If the speaker
connector is visible, visually verify that the speaker
connects to J6 on the UI.
3. If both visual checks pass, follow procedure under TEST
#1, Main Control (ACU), page 3-4 to verify supply voltages.
4. Verify the continuity of the UI harness.
ACU J18 - Pin 1
ACU J18 - Pin 2
ACU J18 - Pin 3
¾ If continuity fails, replace the UI harness and go to step
5.
¾ If continuity passes, go to Test #11, page 3-17, then
return to step 5.
5. Reassemble all parts and panels.
6. Plug in washer or reconnect power.
7. To verify repair, activate the Service Diagnostic Mode, and
then perform Key Activation & Encoder Test on page 2-3.
3-10 Whirlpool & Maytag Direct Drive Top Load Washer
n
For Service Technician Use Only
Black UI J17 - Pin 3
Blue UI J17 - Pin 2
Yellow UI J17 - Pin 1
Some buttons do not toggle indicators:
1. Unplug washer or disconnect power.
2. Replace the UI assembly.
3. Reassemble all parts and panels.
4. Plug in washer or reconnect power.
5. To verify repair, activate the Service Diagnostic Mode, and
then perform Key Activation & Encoder Test on page 2-3.
No audio feedback is heard:
1. Enter the Service Diagnostic Mode, and then perform Key
Activation & Encoder Test on page 2-3.
¾ If audio feedback is heard with each button press while
in Key Activation & Encoder Test mode, continue to
step 2.
¾ If no audio feedback is heard with each button press
while in Key Activation & Encoder Test mode, continue
to step 4.
2. Exit Key Activation & Encoder Test by pressing POWER.
3. Turn on the washer and enable audio feedback in normal
mode:
¾ Whirlpool: Press "Audio Level" to change the button
sounds level (Off, Low, Med, High). Each press
increments the sound one level.
¾ Maytag: Press "Audio Level" to change the button
sounds volume (this will also change the volume of the
end-of-cycle signal).
4. Unplug washer or disconnect power.
5. Whirlpool: Access the user interface by separating the
glass top of the lid from the lid's white lower frame.
Visually check that the speaker connects to J6 on the UI.
Maytag: Access the console electronics and, if needed,
remove the user interface from the console shell and
visually check that the speaker connects to J6 on the UI.
6. If visual check passes, replace the user interface assembly.
7. Reassemble all parts and panels.
8. Plug in washer or reconnect power. Perform Service
Diagnostics on page 2-5. To verify repair, activate the
Service Diagnostic Mode, and then perform Key Activation
& Encoder Test on page 2-3.