E42
Hoover Door Locking/Unlocking Control Fault

Washer-dryer shows E42; door may remain locked or unlock unexpectedly

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Intermittent door lock coil, Loose wiring, PCB relay/triac fault, Voltage supply issue to lock

How to Fix / Troubleshooting

Safety: Disconnect power before working on the lock or PCB.

  • Inspect door lock: Check for signs of overheating or intermittent operation. Replace if unreliable.
  • Check harness: Ensure the lock wiring is secure and not damaged.
  • Measure supply voltage (advanced): With extreme caution and only if qualified, measure voltage at the lock during lock/unlock commands. Inconsistent voltage suggests PCB issues.
  • PCB replacement: If the lock and wiring are good, the PCB may need replacement by a professional.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board (PCB)
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