F9
Whirlpool
Door lock circuit failure
Display shows F9 or F9-E0, oven door will not lock or unlock during 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, broken door lock switch, misaligned latch, wiring harness damage between lock and control
How to Fix / Troubleshooting
Safety first: Turn off power before accessing the latch. The door may be locked; do not force it open.
- Manual door release: On many Whirlpool ranges, you can access the latch from the top by removing the cooktop or from the front by removing the control panel trim. Manually move the latch to unlock the door.
- Inspect latch assembly: Check for broken plastic pieces, bent latch arm, or seized lock motor. Replace the door lock assembly if damaged.
- Test lock motor and switch: With a multimeter, verify continuity of the lock switch and resistance of the lock motor. Replace if open or out of spec.
- Check harness and connectors: Ensure all connectors between the lock assembly and control board are tight and wires are not pinched or burned.
- Control board: If the lock assembly and wiring are good but F9 persists, replace the electronic oven control.
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Repair Difficulty
Hard
4/5
Required Part
Oven Door Lock Motor and Switch Assembly
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