F10
Zanussi Door Lock / Door Switch Fault (Pyrolytic or Safety Interlock)

Oven shows F10 and will not start any cooking program

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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

Faulty door lock motor or solenoid (on pyrolytic models), Defective door switch or microswitch, Misaligned door latch, Broken wiring between lock and PCB

How to Fix / Troubleshooting

Safety first: Disconnect mains power. If the door is locked and the oven is hot, allow it to cool fully before attempting to open.

Step-by-step checks:

  • 1. Check door closure: Ensure the door closes fully and evenly. Look for bent hinges or a damaged latch hook.
  • 2. Listen for lock operation: On pyrolytic Zanussi ovens, start a cleaning cycle (with power on, qualified person) and listen for the lock motor. If there is no sound, the lock may be faulty.
  • 3. Access door lock assembly: Remove the top or front panel to reach the door lock. Inspect for broken plastic parts or a jammed mechanism.
  • 4. Test microswitches: With power off, test continuity of the door lock microswitches while operating the lock manually. Replace the lock assembly if switches do not change state.
  • 5. Check wiring: Inspect the harness from the lock to the control board for breaks or loose connectors.
  • 6. Replace door lock: Fit a new Zanussi door lock assembly if the motor or switches are defective. Ensure correct alignment so the door latches smoothly.

Warning: Never force the door open during or after a pyrolytic cycle; internal temperatures can be extremely high.

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Repair Difficulty

Hard 4/5

Required Part

Door Lock Assembly / Door Switch
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