Wine cooler runs but does not cool; interior remains at room temperature or only slightly cooler.

Critical safety: Refrigerant handling requires certified personnel and specialized tools. Do not attempt to open the sealed system yourself.

• Check basic operation: Confirm that the compressor and internal fan are running and that the condenser at the back becomes warm after 10–15 minutes.
• Feel evaporator area: With the unit running, carefully touch the interior rear panel. It should become cool or show light frost in a normal pattern. If it stays warm, there is likely a sealed system issue.
• Inspect for oily residue: Look for oil stains on tubing joints, which can indicate a refrigerant leak.
• Clean condenser: Ensure the condenser coil is clean and that ventilation is adequate. Poor airflow can mimic a cooling failure.
• Call a refrigeration technician: If the sealed system is suspected (leak, blockage, weak compressor), contact a certified technician to locate leaks, repair tubing, evacuate, and recharge with the correct refrigerant.