Display shows F9 and oven door may not lock or unlock properly during self-clean; self-clean cycle may abort.

Safety first: Disconnect power before working on the door lock system. Surfaces may be hot if a self-clean was recently attempted.

• Check door alignment: Ensure the oven door closes fully and the latch engages smoothly. Adjust door hinges if the door is sagging or misaligned.
• Listen for lock motor: When starting self-clean, you should hear the door lock motor run. If there is no sound, suspect a failed motor or no power to the lock assembly.
• Access lock assembly: Remove the top panel or rear panel (depending on model) to access the door lock motor and switches. Inspect for broken linkages or bent latch components.
• Test switches and motor: Use a multimeter to check continuity of the lock and unlock switches and the motor windings. Replace the door lock assembly if any component is open or mechanically damaged.
• Reset after repair: After replacing parts, restore power and attempt a short self-clean or lock cycle to verify proper operation and that F9 is cleared.

If the door is stuck locked with food inside, consult the service manual or a technician for safe manual release procedures.