Display shows F29; door may appear locked even when open, or unit refuses to start.

Safety first: Unplug the appliance before servicing the door lock.

• Inspect door lock: Access the lock assembly and check for mechanical sticking or broken parts.
• Check harness: Ensure the lock wiring is not shorted to chassis and connectors are secure.
• Reset control: After reseating connections, restore power and test a cycle.
• Replace lock: If F29 persists, replace the door lock assembly with a JennAir-compatible part.

When to call a technician: If a new lock does not resolve the error, the control board may need professional evaluation.