Electrolux
Temperature Control Instability
Freezer interior temperature fluctuates widely; some items thaw and refreeze.
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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 temperature sensor, Poor air circulation due to blocked vents, Control board algorithm fault, Door frequently opened or left ajar
How to Fix / Troubleshooting
Safety first: Unplug the freezer before accessing sensors or control boards.
- 1. Check loading and vents: Ensure air vents inside the freezer are not blocked by food packages. Avoid overpacking.
- 2. Monitor with a thermometer: Place a thermometer in the center of the freezer and log temperatures over 24 hours to confirm fluctuations.
- 3. Inspect and test cabinet sensor: Access the NTC sensor and measure resistance at a known temperature. Replace if readings are erratic or out of spec.
- 4. Control board replacement: If sensor and airflow are good but temperature swings remain large, the main control board may be misregulating compressor run time and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Cabinet NTC Temperature Sensor
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