AEG Short Circuit or Overcurrent on Start-Up

The microwave trips the household circuit breaker or blows a fuse when starting.

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

Shorted high-voltage capacitor, Shorted mains filter, Faulty door switch causing a short, Damaged power cord

Safety warning: Repeatedly resetting a tripping breaker is dangerous. Unplug the microwave and do not use it until inspected.

Step 1 – Check power cord: Inspect the AEG microwave's power cord for cuts, burns, or crushed sections. Replace if damaged.
Step 2 – Try another outlet: Plug into a different, properly rated outlet to rule out wiring issues with the outlet.
Step 3 – Internal inspection (technician): A technician should test the mains filter, door switches, and high-voltage capacitor for shorts and replace any faulty components.

Professional Required 5/5

Mains Filter Board

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