Oven displays F9; door may not lock or unlock properly during self-clean.

Safety first: Turn off power at the breaker. Allow the oven to cool fully if it was in self-clean.

• Check door movement: Try opening and closing the door. If it is jammed, do not force it; the lock mechanism may be stuck.
• Access lock assembly: Remove the top panel or rear panel (depending on model) to access the door lock motor and latch assembly.
• Inspect linkage: Look for bent linkage, broken plastic pieces, or obstructions. Clear any debris and ensure the latch moves freely by hand with power off.
• Test lock motor and switches: Use a multimeter to check continuity of the lock motor and door lock switches. Replace the lock motor assembly if open or mechanically failed.
• Reset control: After repair, restore power and run a short self-clean or lock/unlock cycle to verify operation.

Warning: Do not bypass or defeat the door lock; it is a critical safety device.