F5
Whirlpool
Compressor Temperature Sensor / Overheat Fault
Whirlpool air conditioner displays F5 and may not 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 compressor temperature sensor, actual compressor overheating due to high head pressure, low airflow, or low refrigerant, wiring damage
How to Fix / Troubleshooting
Safety: Turn off power and do not attempt to bypass safety sensors.
User checks:
- Ensure coils and filters are clean and airflow is unobstructed.
- Allow the unit to cool for 30–60 minutes, then restart.
Service-level checks:
- Inspect and test the compressor temperature sensor (if external) for proper resistance.
- Verify refrigerant pressures and compressor current draw.
Because this fault often indicates serious compressor or system issues, professional service is recommended.
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Repair Difficulty
Professional Required
5/5
Required Part
Compressor Temperature Sensor
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