F2
Frigidaire
Temperature Sensor Circuit Error
Dehumidifier displays F2 and may shut down or fail to start the compressor.
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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 ambient or coil thermistor, Loose thermistor connector, Damaged thermistor harness, Faulty main control board
How to Fix / Troubleshooting
Safety: Unplug the unit.
Steps:
- Identify which sensor: Consult the model’s tech sheet (often behind a panel) to see whether F2 refers to ambient or coil sensor. If unavailable, inspect both.
- Inspect sensors: Check both the ambient and evaporator thermistors for secure mounting and intact wiring.
- Reseat connectors: At the control board, unplug and replug the thermistor connectors.
- Check for corrosion: Look for green/white corrosion on connectors and clean gently if present.
- Replace suspect sensor: If one sensor appears damaged or loose in its housing, replace it with the correct Frigidaire thermistor.
- Control board: If F2 persists after sensor replacement, the main control board may be faulty and should be replaced by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Temperature Sensor (Thermistor)
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