High-pitched whistling or whooshing noise from the back of the wine cooler.

Safety: Unplug the unit before touching the fan or rear components.

• Check ventilation: Ensure that intake and exhaust grilles are not blocked by walls, cabinets, or dust.
• Inspect fan: Remove the rear panel and verify the condenser fan blades are not rubbing against the shroud. Adjust or tighten the fan as needed.
• Accept normal sounds: Mild gurgling or whooshing is often normal refrigerant flow. Only act if the noise is unusually loud or new.