Washer-dryer combo shows E15 and will not start; door appears closed but machine thinks it is open.

Safety first: Unplug the unit before adjusting hinges or replacing the lock.

• Check door alignment: Close the door slowly and observe if it lines up evenly with the cabinet. If it sags, tighten hinge screws or adjust the door position.
• Inspect latch and strike: Examine the latch mechanism and door strike for wear or damage. Replace worn parts to ensure a firm engagement.
• Test door lock switch: Access the door lock assembly and use a multimeter to test the switch contacts while manually engaging the lock. Replace the lock assembly if the switch does not close properly.
• Secure wiring: Ensure the wiring harness to the door lock is firmly connected and not pinched by the cabinet.
• Verify operation: After reassembly, start a cycle and confirm that the door-closed indicator is recognized and E15 is cleared.