Washer-dryer combo displays dE or DE and will not start; door will not lock or is sensed as open.

Safety first: Unplug the unit before removing panels.

• Ensure proper closure: Firmly close the door until you hear a click. Check for clothing caught in the door seal.
• Inspect door strike: Look at the plastic strike on the door. Replace if cracked or missing.
• Check door lock: Access the door lock assembly and inspect for damage. Test with a multimeter and replace if faulty.