Maytag Overheating and Thermal Cutout Trip

Microwave stops mid-cycle and shuts off completely; may come back on after cooling.

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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.

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Possible Causes

Blocked ventilation, Failed internal cooling fan, Weak or opening thermal fuse/thermostat, Overheating magnetron

How to Fix / Troubleshooting

Safety first: Unplug the microwave and allow it to cool before further use.

Ventilation:

  • Ensure that all vents are clear and that the microwave has proper clearance from cabinets and walls.
  • Clean grease filters and any accessible vent screens.

Usage:

  • Avoid running the microwave empty or for extended periods at maximum power.

If problem persists:

  • The internal cooling fan may not be operating correctly, or a thermal fuse/thermostat may be weak.
  • These components are internal and near high-voltage parts; have a technician test and replace as needed.
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Repair Difficulty

Hard 4/5

Required Part

Cavity Thermostat / Thermal Fuse
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