De Dietrich
Unstable Temperature Control
Freezer temperature fluctuates widely; sometimes too warm, sometimes too cold.
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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
Intermittent temperature sensor, Loose sensor connection, Control board intermittently failing, Poor door sealing causing variable load
How to Fix / Troubleshooting
Safety first: Disconnect power before accessing sensors or the control board.
- Use a thermometer: Place a thermometer inside and log temperature over 24 hours to confirm fluctuations.
- Inspect sensor wiring: Check the freezer NTC sensor and harness for loose connectors or damaged insulation.
- Reseat connectors: At the main PCB, reseat the sensor connector to ensure good contact.
- Door seal and loading: Avoid overloading the freezer and ensure air can circulate. Replace a poor gasket.
If fluctuations persist, the sensor or control board may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Freezer NTC Temperature Sensor
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