F91
Stoves
Door lock not locking when commanded
Oven displays F91; door will not lock for 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 preventing lock engagement, Faulty lock relay on control board, Broken lock linkage
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing the lock mechanism.
- Check door alignment: Ensure the oven door closes fully and evenly. Adjust hinges or door strike if the door is sagging or misaligned.
- Inspect lock linkage: Access the lock assembly and verify that the linkage moves freely and is not disconnected or bent.
- Test motor and relay: With power applied and a self-clean command given, check for voltage at the lock motor. If no voltage, the control board relay may be faulty. If voltage is present but no movement, replace the lock motor assembly.
- Replace faulty components: Replace the door lock assembly or control board as indicated by testing.
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Repair Difficulty
Hard
4/5
Required Part
Oven Door Lock Assembly
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