F90
Café
Door Lock Motor or Switch Failure
Oven displays F90; door may remain locked or unlocked when it should not, often after self-clean.
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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
Failed door lock motor, Misaligned door latch, Faulty lock position switch or wiring
How to Fix / Troubleshooting
Safety First: Turn off power at the breaker. The lock mechanism can move suddenly; keep hands clear of linkages.
- Allow cooling: If the error occurred during or right after self-clean, allow the oven to cool fully. The lock will not release until temperature is safe.
- Check door alignment: Inspect hinges and the latch strike on the frame. Tighten loose hinge screws and ensure the door closes evenly.
- Access lock assembly: Remove the top panel or rear cover to reach the door lock motor and latch assembly. Look for broken plastic parts, disconnected rods, or burnt connectors.
- Test switches: Use a multimeter to check continuity of the lock position switches while manually moving the latch.
- Replace assembly: If the motor does not run or switches fail, replace the complete door lock motor and latch assembly.
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Repair Difficulty
Hard
4/5
Required Part
Door Lock Motor and Latch Assembly
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