F91
Dacor
Door lock not engaging during self-clean
Dacor oven shows F91 and self-clean will not start or complete; door may not lock.
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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
Weak or failed door lock motor, Misaligned latch, Faulty lock position switch, Control not sending lock signal
How to Fix / Troubleshooting
Safety first: Disconnect power at the breaker before servicing the lock system.
- Check door alignment: Ensure the oven door closes fully and evenly. Adjust hinges if the door is sagging or misaligned.
- Inspect lock mechanism: Access the lock motor and latch from the top/front. Look for bent linkage or obstructions preventing full travel.
- Test lock motor: With power off, test the motor for continuity. If open or noisy when powered (by a technician), replace the lock assembly.
- Verify switches: Check the lock position switches for proper operation with a multimeter as the latch moves.
Warning: Self-clean cycles reach very high temperatures. Do not attempt to bypass the lock system to run self-clean.
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Repair Difficulty
Hard
4/5
Required Part
Oven Door Lock Motor Assembly
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