Frigidaire Intermittent Door Switch or Overheat Protection

Microwave runs for a few seconds then shuts off; may restart if you press Start again.

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

Loose door switch, Warped door causing intermittent contact, Overheating triggering thermal cutout, Failing control board relay

Safety First: Unplug before internal inspection.

Basic checks:

Door test: While running, gently press on the door. If the unit shuts off or restarts, the door switches or latch are suspect.
Ventilation: Ensure vents and filters are clean and not blocked.

Advanced checks:

Inspect door switches: Access the door switch assembly and check for loose mounting or worn actuators.
Check thermal cutouts: A technician can test the Frigidaire thermal cutouts and control board for intermittent faults.

Hard 4/5

Door Switch Assembly

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