Wine cooler displays L1 and may shut down cooling; sometimes occurs in very cold rooms.

Safety: No internal work is needed for basic checks; unplug before any disassembly.

Steps:

• Check installation location: Confirm the wine cooler is installed in a room within the specified ambient range (typically 10–32°C). Move the unit if necessary.
• Allow temperature to rise: If the room is very cold, L1 may clear automatically once ambient temperature increases.
• Test ambient sensor: If L1 appears even in a normal room, test the ambient NTC sensor as described for E3. Replace if it reads excessively high resistance (indicating very low temperature) at normal room temperature.
• Control board: If the sensor is correct and L1 persists, the main control board may be faulty and require replacement.