Wine cooler is too cold; bottles may be near freezing even at higher setpoints.

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

• Verify set temperature: Confirm the displayed setpoint is correct and that no special modes (e.g., fast chill) are active.
• Check sensor placement: Remove interior panels and ensure the compartment NTC sensors are not taped directly to the evaporator coil, which can cause false low readings.
• Inspect wiring: Look for damaged or shorted sensor wires that could cause incorrect readings.
• Replace suspect sensor: If overcooling is confined to one zone, replace that zone's NTC sensor.
• Control board: If sensors are good and correctly placed, the main control board may have a stuck relay or calibration fault and should be replaced.