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6-2
DIAGNOSTICS & TROUBLESHOOTING
FOR SERVICE TECHNICIAN'S USE ONLY
PAGE 10
DO NOT REMOVE OR DESTROY
TROUBLESHOOTING GUIDE
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 user
interface
Check connections and continuity between
CCU and UI.
CCU problem
See TEST #1: CCU Power Check.
User interface problem
See TEST #2: User Interface.
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.
Connections between CCU and UI
Check connections and continuity between
CCU and UI.
User interface problem
See TEST #2: User Interface.
CCU problem
See TEST #1: CCU Power Check.
Connections between CCU and UI
Check connections and continuity between
CCU and UI.
User interface problem
See TEST #2: User Interface.
CCU problem
See TEST #1: CCU Power Check.
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.
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.
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.
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.
Pressure sensor problem
See TEST #7: Pressure Sensor/Switch.
Drain hose/filter is plugged
Check for hose and drain filter obstructions.
Valve(s) not shutting off
See TEST #6: Water Inlet Valves.
Pressure sensor problem
See TEST #7: Pressure Sensor/Switch.
Drain pump problem
See TEST #8: Drain Pump.
Is door lock showing open during
See TEST #4: Door Lock System.
Harness connections
Check harness connections between CCU >
MCU > and drive motor.
Motor problem
See TEST #3: Motor Circuit.
Mechanical friction
Check for obstruction between spin basket
and outer tub.
Harness connections
Check harness connections between CCU >
MCU > and drive motor.
Motor problem
See TEST #3: Motor Circuit.
WON’T POWER UP
•
No operation
• No keypad respons
e
• No LEDs or display
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
MOTOR OVERHEATS
DRUM WON’T ROTATE
OVERFILLS
WON’T DISPENSE
the cycle?
Содержание WFW94HEX Series
Страница 61: ...5 2 FOR SERVICE TECHNICIAN S USE ONLY COMPONENT TESTING continued ...
Страница 76: ...5 17 NOTES ...
Страница 83: ...7 1 WIRING DIAGRAMS WASHER NON STEAM ...
Страница 86: ......