dE
Haier
Door not detected as closed / door interlock error
Microwave shows dE or "door" and will not start
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Misaligned door latch, Defective door switch, Broken latch hook, Loose door switch bracket
How to Fix / Troubleshooting
Safety: Unplug the microwave before any mechanical adjustment.
- Inspect door and latch: Check that the door closes evenly and that the latch hooks are not cracked or bent.
- Clean latch area: Food debris can prevent full latch engagement. Clean the latch openings on the cabinet and the hooks on the door.
- Firm closure: Close the door firmly but not forcefully and try starting a simple cook cycle.
- Door switch check (advanced): Remove the outer cover and inspect the door switch assembly. Ensure switches are securely mounted and actuated by the latch.
- Replace damaged parts: Replace any broken latch hooks or faulty door switches with Haier-approved components.
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Repair Difficulty
Hard
4/5
Required Part
Door Latch and Switch Assembly
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