Frigidaire Professional
Temperature Control / Thermistor / Damper Malfunction
Refrigerator runs constantly and is too cold; food freezing in fresh food section.
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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
Stuck open air damper, Misreading fresh food thermistor, Faulty main control board, Incorrect temperature setting
How to Fix / Troubleshooting
Safety First: Unplug the refrigerator before accessing the damper or control board.
- 1. Verify settings: Ensure the refrigerator temperature is not set to the coldest setting. Adjust to recommended (around 37°F / 3°C).
- 2. Check damper operation: Locate the air damper between freezer and fresh food. With power on and doors closed, the damper should open and close periodically. If stuck open, replace the damper assembly.
- 3. Inspect thermistor: Check the fresh food thermistor for secure mounting and damage. Replace if suspect.
- 4. Control board: If damper and thermistor are good, the main control may be over‑cooling and may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Air Damper Assembly
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