Troubleshooting Guide - Maytag Washer Service Manual

FOR SERVICE TECHNICIAN'S USE ONLY
TROUBLESHOOTING GUIDE –
PROBLEM
WILL NOT POWER UP
- No operation
- No keypad response
- No LEDs or display
WILL NOT START CYCLE
(No response when Start button
is pressed.)
WILL NOT SHUT OFF
WHEN EXPECTED
CONSOLE WON'T ACCEPT
SELECTIONS
DRUM WILL NOT SPIN
WILL NOT HEAT
HEATS IN AIR CYCLE
SHUTS OFF BEFORE CLOTHES
ARE DRY
WATER VALVE NOT DISPENSING
Water valve is activated intermittently
(
during the steam cycle.)
PAGE 8
Some tests will require accessing components (see page 24).
POSSIBLE CAUSE
No power to dryer.
Connection problem between AC plug and dryer. See Test #2: Supply Connections, page 10.
Connection problem between CCU and UI.
Power supplies not present at machine electronics. See Test #1: CCU Power Check, page 9.
User Interface problem.
Door not fully closed or striking the door latch.
Door Switch problem.
Drive Belt / Belt Switch problem.
Thermal Fuse / Motor problem.
User Interface problem.
CCU problem.
Poor airflow.
Check the Pause/Cancel button.
Moisture Sensor problem.
Thermistor problem.
User Interface problem.
CCU problem.
User selects invalid option.
User Interface problem.
Drive Belt / Belt Switch problem.
Thermal Fuse (Elect. Only).
Door switch problem.
Motor problem.
CCU problem.
Check installation.
Check for L1 (Gas/Elect.) and L2 (Elect. Only). Perform CCU L1 and L2 tests under
Heater system malfunction or open heater coil.
CCU problem.
Heater coil shorted.
Heater relay shorted.
Heater system problem.
Dryness setting for auto cycles.
Lint screen full.
Heater vent clogged.
Moisture Sensor problem.
Adjust Customer Focused Dryness Level.
Steam cycle not selected.
No water to valve.
No water from valve.
CHECKS & TESTS
Check power at outlet, check circuit breaker,
fuses, or junction box connections.
Check connections and continuity between
CCU and UI.
See Test #6: User Interface, page 19.
Be sure the door is completely closed,
then press and hold the START button.
See Test #7: Door Switch, page 20.
See Test #3: Motor Circuit, page 12.
See Test #3: Motor Circuit, page 12.
See Test #6: User Interface, page 19.
See Test #1: CCU Power Check, page 9.
Check lint screen and exhaust vent. Clean
if necessary.
Perform UI Component Test under
Component Activation. See page 5.
See Test #5: Moisture Sensor, page 18.
See Test #4a: Thermistors, page 15.
See Test #6: User Interface, page 19.
See Test #1: CCU Power Check, page 9.
Refer customer to "Use and Care Guide".
See Test #6: User Interface, page 19.
See Test #3: Motor Circuit, page 12.
See Test #4b: Thermal Fuse, page 17.
See Test #7: Door Switch, page 20.
See Test #3: Motor Circuit, page 12.
See Test #1: CCU Power Check, page 9.
Verify proper dryer installation.
Component Activation, page 5.
See Test #4: Heat System, page 13.
See Test #1: CCU Power Check, page 9.
See Test #4: Heat System, page 13.
See Test #4: Heat System, page 13.
See Test #4: Heat System, page 13.
Set desired auto cycle(s) to "more dry".
Clean if necessary. Refer customer
to "Use and Care Guide".
Clean if necessary. Refer customer
to "Use and Care Guide".
See Test #5: Moisture Sensor, page 18.
See Test #5a: Adjusting Customer-
Focused Dryness Level, page 19.
Refer customer to "Use and Care Guide".
Verify water supply is turned on.
See Test #9: Myst Valve, page 21.
DO NOT REMOVE OR DESTROY