E-13
Frigidaire Cavity Temperature Sensor Out of Range

Microwave displays E-13 and may stop sensor cooking cycles.

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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

Failed cavity thermistor, Loose thermistor connection, Control board misreading sensor

How to Fix / Troubleshooting

Safety First: Disconnect power. Avoid contact with high-voltage components.

Steps:

  • Allow cooling: Let the microwave cool completely, then retry. Overheating can temporarily trigger this error.
  • Access thermistor: Remove the outer cabinet and locate the cavity thermistor on the side or top of the cavity.
  • Inspect wiring: Check for loose or damaged wires and reseat connectors.
  • Replace thermistor: Install a new Frigidaire cavity temperature sensor / thermistor if the error persists.

Note: If a new sensor does not resolve E-13, the main control board may require replacement.

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Repair Difficulty

Hard 4/5

Required Part

Cavity Temperature Sensor / Thermistor
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