Washer-dryer combo displays 'dE' or 'DE' and will not start; the 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 it if cracked or missing.
• Check door lock: Access the door lock assembly and inspect it for damage. Test with a multimeter and replace if faulty.