Transtherm
Short Cycling / Control Instability
Cabinet cycles on and off very frequently (short cycling)
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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 located too close to evaporator, Oversensitive control algorithm, Poor air circulation around sensor, Incorrect setpoint or differential settings
How to Fix / Troubleshooting
Safety: Unplug the unit before moving sensors or accessing the control board.
Steps:
- Check sensor location: Ensure the cabinet NTC sensor is not directly in the cold air stream from the evaporator outlet.
- Improve airflow: Rearrange bottles and shelves to allow free air movement around the sensor.
- Adjust settings: If your Transtherm model allows, increase the temperature differential (hysteresis) so the compressor runs longer but less frequently.
- Replace sensor: If the sensor is erratic, replace the cabinet NTC temperature sensor.
Note: Excessive short cycling can reduce compressor life; address promptly.
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Repair Difficulty
Medium
3/5
Required Part
Cabinet NTC Temperature Sensor
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