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F1 — Open Thermal Sensor

critical

The thermal sensor circuit is open, typically caused by excessive heat buildup inside the microwave cavity.

Common causes

  • Excessive heat in the microwave cavity
  • Failed or disconnected thermal sensor

How to fix it

  • Schedule a service appointment
  • Check for ventilation blockages that may cause overheating
  • Technician should test and replace thermal sensor if open circuit confirmed

Parts you might need

  • Thermal sensor
Find replacement parts →
Compiled from Ge's public support resources — original page. Recalled.co is not affiliated with Ge. Report incorrect information at hello@recalled.co.