Fault/Error Codes #2 - Maytag MHW9000YW0 Mode D'emploi

FOR SERVICE TECHNICIAN'S USE ONLY

FAULT/ERROR CODES #2

Code EXPLANATION AND RECOMMENDED PROCEDURE
F5E1 DOOR SWITCH ERROR
This code is generated if the switch is open while the door is locked for more than 5 seconds.
This error code is available only in service diagnostics.
• User presses START without closing door.
• Door switch mechanism damaged or obstructed.
• See TEST #4 (Door Lock System) on page 16.
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 a code is generated. This code is available only in service mode.
• Door not completely closed due to interference.
• Check door lock mechanism for damage, misalignment, or foreign objects.
• See TEST #4 (Door Lock System) on page 16.
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 a code is generated. This code is available only in service mode.
• Verify door latch is secured to front panel.
• Check for misaligned, broken, or over-tightened door latch.
• See TEST #4 (Door Lock System) on page 16.
F6E1 COMMUNICATION ERROR BETWEEN CCU AND MOTOR CONTROL UNIT (MCU)
Communication between the Central Control Unit (CCU) and the MCU has not been detected.
• Check door switch operation. Faulty switch may interfere with power to MCU.
• Check drive system for worn or faulty components.
• Verify continuity in cable between CCU (MI3 & MS2) and MCU. See wiring diagram on page 26.
• See TEST #1 (CCU Power Check) on page 13.
• See TEST #3 (Motor Circuit) on page 15.
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.
• Verify continuity in cable between CCU (UI7) and UI (C2). See wiring diagram on page 26.
• Check AC and DC supplies. See TEST #1 (CCU Power Check) on page 13.
• See TEST #2 (User Interface) on page 14.
F6E5 COMMUNICATION ERROR BETWEEN CCU AND EXPANSION BOARD (EB)
Communications between the CCU and EB have not been detected. When this error occurs, there is
no bulk dispensing, diverter valve operation (if exists), presence, or level information. This error code
is not displayed during operation; however, when the fault occurs, the washer pauses.
• Verify continuity in cable between CCU (FAC3) and EB (CIN4). See wiring diagram on page 26.
• Check AC and DC supplies. See TEST #1 (CCU Power Check) on page 13.
• See TEST #13 (Expansion Board Power Check) on page 21.
F7E1 DRIVE MOTOR SPEED SENSING 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.
• 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) on page 15.
F7E2 MCU OVERHEAT AND/OR MOTOR OVERHEAT
The heat sink exceeds 212°F (100°C). If this occurs, the CCU will reset the MCU and wait for the motor
and/or the MCU to cool down before restarting. After 4 attempts, F7E2 is displayed.
• 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) on page 15.
DO NOT REMOVE OR DESTROY
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