Sub-Zero Overcooling – Sensor or Airflow Imbalance

Wine cooler is too cold; bottles or labels may show signs of freezing, especially near the back.

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.

Possible Causes

Faulty compartment thermistor, Misplaced temperature sensor not in airflow, Damper stuck open (dual‑zone models), Control calibration error

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing sensors or dampers.

Step 1 – Verify temperature

Place a thermometer in the center of the compartment and compare to the setpoint.

Step 2 – Adjust setpoint

Raise the set temperature by several degrees and monitor for 12–24 hours.

Step 3 – Inspect thermistor

Locate the compartment thermistor and ensure it is properly mounted and not touching the evaporator directly.
Replace the thermistor if readings are clearly inaccurate.

Step 4 – Check damper (if equipped)

On dual‑zone units, inspect the air damper between zones; if stuck open, replace the damper motor/assembly.

Repair Difficulty

Medium 3/5

Required Part

Compartment Thermistor

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