F2
Westinghouse
Evaporator Coil Sensor Out of Range (Alternate Code Set)
Display shows F2 and unit may ice up or shut down unexpectedly.
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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
Thermistor drift, sensor not in good contact with coil, damaged sensor wiring, PCB sensor circuit fault
How to Fix / Troubleshooting
Safety: Disconnect power before accessing the evaporator coil.
Steps:
- Check for ice: If the coil is iced over, allow it to thaw completely before working on the sensor.
- Verify sensor contact: Ensure the evaporator sensor is firmly clipped to the coil tubing and not hanging loose.
- Inspect wiring: Look for damage or corrosion at the connector. Reseat the plug on the PCB.
- Replace sensor: If the sensor appears damaged or readings are unstable, replace it with the correct Westinghouse evaporator thermistor.
- PCB evaluation: Persistent F2 with a new sensor suggests a PCB fault requiring professional replacement.
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Repair Difficulty
Medium
3/5
Required Part
Evaporator Temperature Sensor
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