Bauknecht Door Interlock Switches Miswired or Welded

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

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

Welded (stuck) door microswitch contacts, Misaligned door latch, Incorrectly installed replacement switches, Shorted control board door input

Danger: This is a serious safety fault that can cause microwave emission with the door open or closed incorrectly. Unplug the unit immediately.

Step 1 – Do not use the microwave: Leave it unplugged until repaired.
Step 2 – Inspect door and latch: Check for visible damage to the door hooks or frame.
Step 3 – Professional repair: A technician must inspect and correctly wire the door switch assembly, replacing any welded switches and verifying safe operation.

Professional Required 5/5

Door Switch Assembly

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