Water or frost accumulating on the back interior wall of the cabinet.

Safety first: Unplug the unit before removing shelves or panels if heavy frost is present.

Steps to check and fix:

• 1. Defrost: Turn off the cooler and allow all frost to melt. Wipe away water with a towel.
• 2. Check gasket and door alignment: Ensure the door closes evenly and the gasket contacts the cabinet all around. Adjust hinges or replace gasket if needed.
• 3. Adjust temperature: Raise the set temperature slightly to reduce frost formation.
• 4. Improve airflow: Avoid placing bottles directly against the back wall. Leave space for air to circulate around the evaporator area.