Electrolux Door Interlock Switches Miswired or Stuck Closed

Microwave interior light, fan, and turntable run when the door is closed, even without pressing START.

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.

Possible Causes

Stuck primary door switch, Misadjusted door latch, Incorrectly installed door switch after prior repair, Shorted control relay

How to Fix / Troubleshooting

Danger: A microwave that runs with the door closed but not commanded can be unsafe. Unplug the unit immediately and do not use it until repaired.

User-level action:

Disconnect power and leave the microwave unplugged.

Technician-level diagnostics:

Inspect the door interlock switch assembly for correct wiring and orientation.
Test each door switch for proper open/closed state with the door open and closed.
Check the main control board relay for contacts welded closed.
Replace any defective switches and correct wiring per Electrolux service documentation; replace the control board if the relay is stuck.

Repair Difficulty

Professional Required 5/5

Required Part

Door Interlock Switch Assembly

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