Magic Chef oven shows F9 error, often during or after self-clean; door may not lock or unlock properly.

Safety first: Turn off power at the breaker and allow the oven to cool fully before attempting to free a stuck lock.

• Check door alignment: Ensure the oven door closes fully and the latch lines up with the lock slot. Adjust hinges if the door is sagging.
• Manually release lock (if accessible): On some Magic Chef models, you can access the lock from the top by removing the cooktop or from the rear. Gently move the lock arm to release the door.
• Inspect lock assembly: Look for bent linkage, broken plastic cams, or burnt motor windings. Replace the door lock assembly if damaged.
• Test lock motor: With power off, disconnect the motor and measure resistance. An open motor indicates failure. Replace as needed.
• Check lock switches: Verify continuity changes when the lock is in locked vs. unlocked positions. Replace faulty switches or the entire assembly.

When to call a technician: If you cannot safely access the lock or the oven is built-in and difficult to remove, professional service is recommended.