Bosch
Continuous Operation / Control or Sensor Issue
Freezer runs continuously without cycling off, even when temperature seems correct.
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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
Temperature sensor out of calibration, Door gasket leaking cold air, Control board not recognizing setpoint, Ambient temperature very high
How to Fix / Troubleshooting
Safety: Unplug the freezer before accessing sensors or control boards.
Steps:
- Check ambient conditions: Ensure the freezer is not installed in a very hot room or near heat sources.
- Inspect gasket: Verify the door seal is intact and sealing properly.
- Measure temperature: Use a thermometer to confirm actual internal temperature. If it is at or below setpoint but the compressor never stops, suspect sensor or control issues.
- Test sensor: Check the freezer NTC sensor resistance and replace if out of range.
- Control board: If the sensor is correct, the main control module may be faulty and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Freezer Compartment NTC Temperature Sensor
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