Wine cooler produces a gurgling or hissing sound periodically.

Safety: No repair is usually required. Do not attempt to puncture or modify any sealed system components.

Steps:

• Identify noise pattern: Gurgling or hissing that occurs when the compressor starts or stops is typically normal.
• Check for leaks: Ensure there is no oily residue on tubing or around joints, which could indicate a refrigerant leak.
• Verify performance: If the cooler maintains correct temperature and there are no error codes, the noise is likely normal operation.

Action: No parts need replacing unless accompanied by poor cooling or visible leaks, in which case contact a refrigeration technician.