Display shows LO and the temperature cannot be set lower than a certain value.

Safety first: No internal repair is needed for basic checks; unplug only if removing panels.

• Adjust setpoint: Increase the set temperature slightly to within the recommended wine storage range (typically 40–65°F / 5–18°C) and see if LO clears.
• Check room temperature: Ensure the cooler is not installed in a very cold area (e.g., unheated garage in winter). Most Lanbopro wine coolers require ambient temperatures above ~50°F (10°C).
• Sensor check: If LO persists even at higher setpoints, follow the steps for checking the compartment temperature sensor (see E1/E2 procedures) and replace if faulty.
• Control board: If the sensor is good but LO remains, the main control board may be misreading the sensor and require replacement.