L1 or LO displayed and the cabinet temperature is much lower than the setpoint; bottles may feel too cold.

Safety: Unplug the unit before accessing internal components. Avoid prolonged storage of wine at excessively low temperatures.

• Verify setpoint: Check the temperature setting and any special modes (e.g., fast cooling). Adjust to the recommended wine storage temperature (typically 10–18°C / 50–65°F).
• Power cycle: Unplug for 5–10 minutes, then plug back in to reset the control. Observe if the compressor now cycles normally.
• Check sensor accuracy: Compare the displayed temperature with an independent thermometer inside the cabinet. If the display is much higher than actual, the sensor may be faulty, causing overcooling.
• Inspect control board: If the compressor never shuts off even when the setpoint is reached, the compressor relay on the main PCB may be stuck closed. This typically requires board replacement.
• Replace temperature sensor: If sensor readings are clearly inaccurate, replace the cabinet NTC sensor as per the sensor-related procedures.