Wine cooler interior too cold; wine partially freezing even at moderate set temperature.

Safety: Unplug the unit before accessing sensors or the control board.

Steps:

• Verify with thermometer: Place an accurate thermometer inside and compare to the display. If the actual temperature is much lower, a sensor/control issue is likely.
• Inspect sensor placement: Ensure the cabinet temperature sensor is clipped in the correct location and not touching the evaporator directly, which can cause false readings.
• Test sensor: Measure resistance at known temperatures and compare to spec. Replace if out of range.
• Check control relay: If the compressor runs continuously even when the set temperature is reached, the compressor relay on the main control board may be stuck closed. Replace the board.