dE
Oster
Door error / door not detected as closed
Microwave displays dE or DE and will not start; often accompanied by a door open icon.
Advertisements
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.
Advertisements
Possible Causes
Misaligned door, Broken door latch hook, Failed door interlock switch, Loose door switch wiring
How to Fix / Troubleshooting
Safety first: Unplug the microwave before adjusting or opening panels.
- Check door alignment: Open and close the door firmly. Ensure it is level and not sagging. If hinges are loose, tighten hinge screws if accessible.
- Inspect latch hooks: Look for cracked or bent plastic hooks on the door. Replace the door latch assembly if damaged.
- Listen for clicks: You should hear 2–3 distinct clicks when closing the door. Missing clicks can indicate a failed interlock switch.
- Advanced: Access the interlock switch assembly and test each switch with a multimeter. Replace any defective switches with Oster-compatible parts.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Door Latch and Interlock Switch Assembly
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements