Washer-dryer shows F34; the door cannot be locked at the start of the cycle.

Safety first: Unplug the appliance.

Mechanical alignment:

• Check hinge: Inspect the door hinge for sagging or looseness. Tighten hinge screws and adjust so the door lines up with the lock opening.
• Door hook: Replace the door hook if it is worn or cracked.
• Lock plate: Ensure the lock assembly is firmly mounted and not loose.

Test: After adjustments, close the door and start a cycle. If F34 persists, replace the door lock assembly.