Wine cooler interior temperature fluctuates widely; sometimes too warm, sometimes too cold.

Safety: Unplug before accessing internal components.

Steps:

• 1. Check loading and airflow: Avoid overpacking bottles against the rear wall or vents. Maintain space for air circulation.
• 2. Inspect door gasket: Look for gaps or tears. Close the door on a sheet of paper; if it pulls out easily, the seal may be weak.
• 3. Reseat sensor connectors: Access the cabinet sensor and ensure its connector is tight at both the sensor and control board ends.
• 4. Monitor after reset: After reseating, plug in and monitor temperature with an independent thermometer over 24 hours.

Professional help: If fluctuations persist, the control board may be cycling the compressor incorrectly and should be evaluated by a technician.