F9E0
KitchenAid Line Voltage or Power Supply Error

Microwave shows F9E0 and may not start; sometimes associated with tripping the breaker.

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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

Incorrect line voltage, loose power cord connection, failing noise filter board, shorted internal wiring, power surge damage

How to Fix / Troubleshooting

Electrical Safety: If the breaker is tripping, do not repeatedly reset it. Unplug the microwave and investigate.

  • Verify outlet: Use a tester to confirm the outlet is wired correctly and provides stable 120 VAC (in North America).
  • Inspect power cord: Check the cord for cuts, burns, or kinks. Replace if damaged.
  • Noise filter and wiring: With the cabinet removed, inspect the noise filter board and line wiring for burn marks or melted insulation.
  • Replace damaged parts: Replace any burnt wiring, the noise filter board, or the main control board if visibly damaged.
  • Professional help: If you cannot identify the source of the short or overcurrent, contact a qualified technician.
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Repair Difficulty

Hard 4/5

Required Part

Noise Filter Board
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