dE
Commercial Chef
Door Open Detection Error
Microwave displays dE or "door" and will not start a cycle.
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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
Door not fully closed, misaligned door switches, broken door latch, failed door switch
How to Fix / Troubleshooting
Safety: Unplug the microwave before any internal inspection.
Door closure checks:
- Open and firmly close the door, listening for a solid click from the latch mechanism.
- Ensure no containers, foil, or large items are preventing the door from closing fully.
- Inspect the door gasket and frame for warping or damage.
Switch inspection (advanced):
- Remove the cabinet and locate the door switch cluster.
- Test each switch with a multimeter for proper open/closed operation when the door is actuated.
- Replace any defective switch and ensure the latch bracket is properly aligned.
After reassembly, verify that the dE or door message is cleared and that the unit starts normally.
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Repair Difficulty
Medium
3/5
Required Part
Door Switch Assembly
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