Interior temperature fluctuates widely; some bottles too warm while others are too cold.

Safety: Unplug the unit before accessing the fan or sensors.

Steps:

• Check loading pattern: Avoid overpacking shelves and blocking air vents at the rear or sides. Allow space between bottles for airflow.
• Verify fan operation: With the unit running, listen for the interior fan. If silent, inspect and replace the evaporator fan motor as needed.
• Inspect thermistor placement: Ensure the cabinet sensor is not directly in the airflow of the fan or touching cold surfaces; it should sense average air temperature.
• Check door gasket: A leaking gasket can cause warm air infiltration and uneven temperatures. Replace if necessary.

Tip: Use a separate thermometer on different shelves to verify improvements after adjustments.