Wine cooler displays L1 or a low temperature alarm; bottles may feel too cold or partially frozen.

Safety first: Unplug the unit before accessing sensors or control boards.

L1 indicates the cabinet temperature has dropped below the expected range for the selected setting.

• Step 1 – Verify setpoint: Check the temperature setting on the control panel. Adjust to a higher (warmer) setting appropriate for wine (typically 45–55°F / 7–13°C).
• Step 2 – Check sensor placement: Ensure bottles are not pressing directly against the interior temperature sensor, which can cause false readings and overcooling.
• Step 3 – Inspect door gasket: A leaking gasket can cause cold air to concentrate near the sensor. Check for tears, gaps, or warped sections and replace the gasket if needed.
• Step 4 – Test cabinet thermistor: If the unit continues to overcool, test the cabinet temperature sensor as described for E1. A sensor reading too warm will cause the control to overrun the compressor.
• Step 5 – Replace sensor or control board: Replace a faulty thermistor with a Café-compatible part. If the sensor is good but the compressor runs excessively, the main control board may be defective and require replacement.

Monitor temperature with an independent thermometer after repairs to confirm stable operation.