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6-5
DIAGNOSTICS & TROUBLESHOOTING (continued)
FOR SERVICE TECHNICIAN'S USE ONLY
FAULT/ERROR CODES (co
nti
nued) —
The fault codes below may be indicated
under various conditions and can be accessed through Service Diagnostics.
Display EXPLANATION AND RECOMMENDED PROCEDURE
F5E2 DOOR LOCK ERROR
At the start of a cycle, the washer attempts to lock the door 6 times. If door cannot be locked, the washer
goes into pause mode and code is generated. This code is available only in service mode.
Possible Causes
• Door not completely closed due to interference.
• Check door lock mechanism for damage, misalignment, or foreig
n objects.
• See TEST #4 (Door Lock System).
F5E3 DOOR UNLOCK ERROR
At the start of a cycle, the washer attempts to unlock the door 6 times. If door cannot be unlocked, the washer
goes into pause mode and the code is generated. This code is available only in service diagnostics.
Possible Causes
•
Verify door latch is secured to front panel.
• Check for misaligned, broken, or over-tightened door latch.
• See TEST #4 (Door Lock System).
F6E1 COMMUNICATION ERROR BETWEEN CCU AND MCU
Communication between the Central Control Unit and the MCU has
not been detected.
Possible Causes
• Check door switch operation. Faulty switch may interfere with power to MCU.
• Check drive system for worn or faulty components.
•
Ve
rify continuity in cable between CCU (MI3 & MS2) and MCU. See
wiring diagrams.
• See TEST #1 (CCU/Power Check).
• See TEST #3 (Motor Circuit).
F6E2 COMMUNICATION ERROR UI TO CCU
F6E3 COMMUNICATION ERROR CCU TO UI
Communication between Central Control Unit (CCU) and User Interface (UI) has not been detected.
Possible Causes
•
Ve
rify continuity in cable between CCU (UI7) and UI (C2). See wir
ing diagrams.
• Check AC and DC supplies. See TEST #1 (CCU/Power Check).
• See TEST #2 (User Interface).
F7E1 DRIVE MOTOR TACHOMETER ERROR / WASHER OVERLOAD
The MCU is unable to properly detect motor speed and the washer
shuts down. If error occurs during
high-spin, the door remains locked for 2-3 minutes.
Possible Causes
•
Washer is overloaded.
•
Verify that the shipping system, including shipping bolts and spacers, is removed.
• Mechanical friction – verify that drum rotates freely
.
• See TEST #3 (Motor Circuit).
F7E2 MCU FAULT OR MOTOR OVERHEAT
The heat sink exceeds 212°F (100°C). If this occurs, CCU will reset the MCU and wait for the motor
to cool down before restarting.
This procedure can repeat up to 4 times before F7E2 is displaye
d.
Possible Causes
•
Improper installation of washer. Ensure that washer is not located near a heat source and has proper ventilation.
• Check that drum is not overloaded with clothes.
• Mechanical friction – verify that drum rotates freely
.
• Check drive system for worn or faulty components. See TEST #3 (Motor Circuit).
F8E0 STEAM INLET VALVE ERROR (Not available on all models)
This error is displayed when the steam valve malfunctions. This error can be seen only in service diagnostics.
Possible Causes
• Is water supply connected and turned on?
• Check for blocked or kinked inlet hoses.
• Low water pressure or blocked hose screens
.
• Check steam valve operation. See TEST
#6 (Water Inlet V
alves).
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: ......