Frigidaire
Freezer Thermostat / Sensor Miscalibration
Freezer too cold, ice cream rock hard, while refrigerator temperature is normal or slightly warm.
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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
Faulty freezer thermistor, Control board misreading sensor, Damper or fan running excessively, Incorrect user settings
How to Fix / Troubleshooting
Safety first: Unplug the refrigerator before testing sensors or accessing the control board.
Steps to correct over‑freezing:
- 1. Verify settings: Ensure the freezer is not set below 0°F. Adjust to recommended settings.
- 2. Check thermistor: Access the freezer thermistor, measure resistance, and compare to the tech sheet. Replace if out of spec.
- 3. Monitor fan operation: Ensure the evaporator fan cycles off periodically; if it runs constantly, suspect a control issue.
- 4. Control board: If the thermistor is good but the control continues to overcool, the main control board may require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Freezer Thermistor
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