Miele Door Sensing / Lamp Control Fault

Microwave interior light does not turn off when the door is closed, but the unit otherwise works.

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

Door not fully closing, Misaligned door switch actuator, Failed door switch, Control board lamp driver fault

Safety first: Unplug the microwave if the light remains on continuously to avoid overheating.

Check for obstructions: Ensure nothing is preventing the door from closing fully.
Inspect latch and switches (advanced): Adjust or replace misaligned or faulty door switches.
Control board: If mechanical parts are fine, the lamp driver on the control board may be defective and require replacement.

Hard 4/5

Door Switch Assembly

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