Wine cooler runs continuously and interior becomes too cold, sometimes freezing bottles.

Safety: Unplug before accessing controls or sensors.

• Check setpoint: Confirm the temperature is not set to the coldest setting unnecessarily.
• Inspect sensor placement: Ensure the cabinet sensor is not touching the evaporator coil directly, which can cause false warm readings. Reposition if necessary.
• Test sensor: Measure resistance and compare to spec. Replace the cabinet temperature sensor if shorted or out of range.
• Control board: If the compressor never cycles off despite correct sensor readings, replace the main control board due to a stuck relay.
• Mechanical thermostat models: If equipped with a knob thermostat, test continuity; replace the thermostat if it does not open when turned to warm.