F2
RCA
Overheat or Cavity Temperature Error
Microwave shows F2 and may stop mid-cycle.
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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 thermal cut-out, Blocked vents causing overheating, Defective cavity thermistor, Faulty control board temperature circuit
How to Fix / Troubleshooting
Safety Warning: Unplug the microwave before removing covers.
User actions:
- 1. Allow cooling: Open the door and let the unit cool for at least 30 minutes. Then try a short cook cycle.
- 2. Check ventilation: Ensure vents are clear and that the microwave is not installed in a confined space without proper airflow.
Component checks (advanced):
- 3. Inspect thermal cut-outs: With the unit unplugged and cover removed, locate the cavity thermal cut-out(s) and test for continuity. Replace any open device with the correct RCA part.
- 4. Test thermistor: Measure resistance and compare to specifications. Replace if out of range.
If F2 continues after verifying sensors and airflow, the control board may be misreading temperature and should be serviced.
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Repair Difficulty
Hard
4/5
Required Part
Cavity Thermal Cut-Out
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