Kenmore
Temperature Sensing / Thermistor Calibration Issue
Refrigerator runs constantly and is too cold or too warm, temperature does not match setpoint.
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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
Drifted or failing thermistor, Thermistor not properly positioned, Airflow blocked around sensor, Faulty main control board ADC
How to Fix / Troubleshooting
Safety first: Unplug the refrigerator before accessing sensors.
Steps:
- 1. Verify actual temperature: Place an accurate thermometer in the refrigerator and freezer to compare actual temperatures to the display.
- 2. Check sensor placement: Locate the compartment thermistors and ensure they are not touching warm items or blocked by food.
- 3. Inspect for damage: Look for cracked sensor housings or loose clips.
- 4. Test thermistors: Disconnect and measure resistance at known temperatures. Replace any that are significantly out of spec.
- 5. If sensors are good: The main control board may be misreading inputs and could require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Refrigerator Thermistor
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