Washer-dryer combo will not start and displays F22; door remains unlocked or will not lock.

Safety first: Unplug the unit before working around the door lock. Do not force the door closed with excessive pressure.

Step-by-step checks:

• 1. Inspect door strike: Check the plastic or metal strike on the door for cracks or missing pieces. Replace if damaged.
• 2. Check door alignment: Ensure the door closes evenly and fully engages the lock. Adjust hinges if the door is sagging.
• 3. Access door lock: Remove the front panel or the door gasket clamp to reach the door lock assembly mounted on the front panel.
• 4. Inspect wiring: Verify the harness connector is fully seated in the lock and shows no signs of burning or corrosion.
• 5. Test lock: With the lock removed and disconnected, measure coil resistance according to the tech sheet. An open coil indicates a failed lock. Replace the door lock assembly if defective.
• 6. Reassemble and test: Install the new lock, reattach the gasket and clamp, and test a cycle to confirm the door locks and F22 clears.