Maytag Short Circuit or Overcurrent Condition

Microwave causes circuit breaker to trip or blows a fuse when starting or during operation.

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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

Shorted high-voltage capacitor or diode, Shorted magnetron, Shorted line filter or wiring, Overloaded circuit shared with other appliances

How to Fix / Troubleshooting

Safety first: Do not repeatedly reset a tripping breaker; this can be a fire hazard. Unplug the microwave.

External checks:

  • Ensure the microwave is on a dedicated circuit as recommended by Maytag.
  • Remove other high-draw appliances from the same circuit.

If tripping continues with only the microwave on the circuit:

  • Internal components are likely shorted (e.g., magnetron, capacitor, diode, or line filter).
  • These are high-voltage parts; have a qualified technician diagnose and replace the defective component.
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Repair Difficulty

Professional Required 5/5

Required Part

High-Voltage Capacitor
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