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PAGE 11
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES
TROY
TROUBLESHOOTING GUIDE #1
PROBLEM
POSSIBLE CAUSE
CHECKS & TESTS
No power to washer.
Check power at outlet, check circuit breakers,
fuses, or junction box connections.
Connection problem between AC plug
and CCU.
Check connections between the AC power
cord and CCU for continuity.
Connections between CCU and UI.
Check connections and harness continuity
between CCU and UI.
CCU problem.
See TEST #1: CCU Power Check, pg. 13.
User interface problem.
See TEST #2: User Interface, pg. 14.
Door lock mechanism not functioning.
1. Door not closed due to interference.
2. Lock not closed due to interference.
3. See TEST #4: Door Lock System, pg. 16.
Connections between CCU and UI.
Check connections and harness continuity
between CCU and UI.
User interface problem.
See TEST #2: User Interface, pg. 14.
CCU problem.
See TEST #1: CCU Power Check, pg. 13.
Connections between CCU and UI.
Check connections and harness continuity
between CCU and UI.
User interface problem.
See TEST #2: User Interface, pg. 14.
CCU problem.
See TEST #1: CCU Power Check, pg. 13.
Door not closed.
Ensure that door is completely closed.
Door lock obstructed.
Check mechanism for obstruction.
Door lock mechanism not functioning.
See TEST #4: Door Lock System, pg. 16.
Reset washer.
Unplug and reconnect the power cord. Wait 2
minutes to see if the washer door unlocks.
Misaligned, broken, or over-tightened
door latch.
Check door lock mechanism and repair as
necessary.
Door lock mechanism not functioning.
See TEST #4: Door Lock System, pg. 16.
No water supplied to washer.
1. Check water connections to washer.
2. Verify hot and cold supply is on.
Dispenser clogged with detergent.
Clean obstruction from dispenser.
Valve problem.
See TEST #6: Water Inlet Valves, pg. 17.
Dispenser system problem.
See TEST #12: Dispenser Distribution System,
No water supplied to washer or low water
pressure.
1. Check water connections to washer.
2. Verify hot and cold supply is on.
Plugged filter/screen.
Check for plugged filter or screen in the water
valve or hoses.
Drain hose installation.
Check for proper drain hose installation.
Is water siphoning out of the drain hose?
Valve problem.
See TEST #6: Water Inlet Valves, pg. 17.
Pressure sensor/switch problem.
See TEST #7: Pressure Sensor/Switch, pg. 17.
Drain hose/filter is plugged.
Check for hose and drain filter obstructions.
Valve(s) not shutting off.
See TEST #6: Water Inlet Valves, pg. 17.
Pressure sensor/switch problem.
See TEST #7: Pressure Sensor/Switch, pg. 17.
Drain pump problem.
See TEST #8: Drain Pump, pg. 19.
Is door lock showing open during the cycle? See TEST #4: Door Lock System, pg. 16.
Harness connections.
Check harness continuity and connections
between CCU > MCU > and drive motor.
Motor problem.
See TEST #3: Motor Circuit, pg. 15.
Mechanical friction.
Check for obstruction between spin basket
and outer tub.
Harness connections.
Check harness continuity and connections
between CCU > MCU > and drive motor.
Motor problem.
See TEST #3: Motor Circuit, pg. 15.
WON’T POWER UP
C
No operation
C!95/B:+.;/<:98<
e
C!9<9;.3<:6+B
WON’T START CYCLE
No response when Start
Button is pressed.
UI WON’T ACCEPT
SELECTIONS
WON’T FILL
(Normal water level is
only 2.5" to 5" [63.5 mm
to 127 mm] inside tub.)
DOOR WON’T LOCK
DOOR WON’T UNLOCK
(See pg. 22 for manually
unlocking the door lock
system.)
MOTOR OVERHEATS
DRUM WON’T ROTATE
OVERFILLS
WON’T DISPENSE
pg. 21.
No hot water dispensed.
Ensure that household hot water is present
at the tap. Minimum 120°F (49°C).
Temperature sensor problem.
See TEST #11: Temperature Sensor, pg. 21.
Heater element problem.
See TEST #10: Heating element, pg. 20.
SANITIZE LED DOES
NOT TURN ON