Wine cooler is too cold; bottles or labels show signs of freezing even at moderate set temperatures.

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

Steps to address:

• Verify with thermometer: Place an accurate thermometer in the middle of the cabinet and compare actual temperature to the display.
• Adjust setpoint: Temporarily raise the set temperature by several degrees and observe if the compressor cycles off more frequently.
• Inspect sensor placement: Ensure the cabinet NTC sensor is correctly clipped in its holder and not touching the evaporator directly, which can cause false low readings.
• Replace sensor: If readings are inconsistent or the control does not respond, replace the cabinet temperature sensor.
• Control board issue: If a new sensor does not correct overcooling, the main control PCB may have a stuck relay or calibration fault and should be replaced by a technician.