Wine cooler is too cold; bottles or labels are frosting or freezing.

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

• 1. Verify temperature setting: Ensure the setpoint is appropriate for wine (not at the coldest setting unless intentionally chilling).
• 2. Check with a thermometer: Place an accurate thermometer inside to confirm actual temperature versus display.
• 3. Inspect and test thermistor: Access the cabinet thermistor, check its mounting, and test resistance. Replace if out of spec.
• 4. Evaluate control board: If the sensor is good but the compressor runs excessively, the compressor relay may be stuck closed. Replace the main control board.
• 5. Monitor after repair: Allow 12–24 hours for temperature to stabilize and confirm that overcooling is resolved.