Whirlpool MVWC400XW Technical Education page 78

TEST #4: Console and Indicators
Console and Indicators Check:
This procedure checks the cycle selector
TROUBLESHOOTING GUIDE (continued)
knob, indicators, buttons, beeper, and if it
FOR SERVICE TECHNICIANS ONLY
exists—the 7-segment display.
1. Plug in washer or reconnect power.
2. To access UI (User Interface) Test Mode,
2. To access UI (User Interface) Test Mode,
perform steps 1 and 2 of Activating the
perform steps 1 and 2 of Activating the
Service Diagnostic Modes. Turn the cycle
Service Diagnostic Modes. Turn
selector knob until the display or status
the cycle selector knob until the display or
LED's correspond as follows:
status LED's correspond as follows:
"Rinse & Spin" LED On, "06" Displayed
"Rinse & Spin" LED On, "

on 7-segment
on 7-segment
Sensing Soak Wash
Press the START button to begin the UI test.
Press the START button to begin the UI test.
Upon entering the UI test mode, all LED's

and display (if it exists) will be turned ON.
Upon entering the UI test mode, all LED's
and display (if it exists) will be turned ON.
Pressing the POWER button will deactivate

the UI test mode.
Pressing the POWER button will deactivate
the UI test mode.
Pressing the START button will toggle the

display, start, and status indicators on and off.
Pressing the START button will toggle the
When rotating the cycle selector knob,

display, start, and status indicators on and
each click "indent" toggles the "Done"
off.
LED as well as the associated cycle LED.
When rotating the cycle selector knob,
Pressing each button will toggle its

each click "indent" toggles the "Done"
respective indicator(s) ON or OFF.
LED as well as the associated cycle LED.
None of the indicators light up:
1. Unplug washer or disconnect power.
Pressing each button will toggle its respective
2. Access the console's electronic assemblies
indicator(s) ON or OFF.
and visually check that the J9 connector is
None of the indicators light up:
inserted all the way into the main control.
1. Unplug washer or disconnect power.
2. Access the console's electronic assemblies
and visually check that the J9 connector is
inserted all the way into the main control
3. Visually check that the user interface
assembly is properly inserted in the
console.
4. If both visual checks pass, follow procedure
under TEST #1, "Main Control" to verify
supply voltages.
If supply voltages are present on the main
control, go to step 5.
If supply voltages are not present, replace
the main control and calibrate washer (p.
4). Perform Automatic Test to verify repair.
Go to step 6.
5. Replace the user interface assembly.
6. Reassemble all parts and panels.
7. Plug in washer or reconnect power.
06
" Displayed
06
Rinse Spin Done
2. Access the console's electronic assemblies
and visually check that the electronics and housing
assembly is properly inserted into the front console.
3. If visual check passes, replace the user
interface assembly.
4. Reassemble all parts and panels.
5. Plug in washer or reconnect power.
8. Follow procedure under TEST #4, "Console
6. Follow procedure under TEST #4 , " Console
and Indicators Check", to verify repair.
and Indicators Check", to verify repair.
Some buttons do not light indicators:
No beep sound is heard (HE models):
1. Unplug washer or disconnect power.
1. Verify that cycle signal is set to either
2. Access the console's electronic assemblies
"Soft" or "Loud." NOTE: Pressing and holding
and visually check that the electronics and
the cycle signal button for three seconds will
housing assembly is properly inserted into
Enable/Disable the cycle signal.
the front console.
2. Unplug washer or disconnect power.
3. If visual check passes, replace the user
interface assembly.
3. Access the console's electronic assemblies
and visually check that the J9 connector is
4. Reassemble all parts and panels.
inserted all the way into the main control.
5. Plug in washer or reconnect power.
4. If visual check passes, replace the user
6. Follow procedure under TEST #4, "Console
interface assembly.
and Indicators Check", to verify repair.
5. Plug in washer or reconnect power.
No beep sound is heard (HE models):
6. Set Cycle Signal to either "Soft" or "Loud."
1. Verify that cycle signal is set to either "Soft"
Check for beep tone.
or "Loud." NOTE: Pressing and holding the
7. If beeper still does not emit a tone, the main
cycle signal button for three seconds will
control has malfunctioned:
Enable/Disable the cycle signal.
a. Unplug washer or disconnect power.
2. Unplug washer or disconnect power.
b. Replace the main control.
3. Access the console's electronic assemblies
c. Reassemble all parts and panels.
and visually check that the J9 connector is
d. Plug in washer or reconnect power. Calibrate
inserted all the way into the main control.
washer and perform procedure under TEST #4,
4. If visual check passes, replace the user
"Console and Indicators Check", to verify repair.
interface assembly.
5. Plug in washer or reconnect power.
6. Set Cycle Signal to either "Soft" or "Loud."
Check for beep tone.
7. If beeper still does not emit a tone, the main
control has malfunctioned:
a. Unplug washer or disconnect power.
b. Replace the main control.
c. Reassemble all parts and panels.
d. Plug in washer or reconnect power. Calibrate
washer and perform procedure under
TEST #4, "Console and Indicators Check",
to verify repair.
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