Excessive frost or ice buildup on the interior back wall or evaporator plate.

Safety: Unplug the cooler before defrosting. Do not use sharp tools to remove ice.

Steps:

• 1. Manual defrost: Turn off and unplug the unit. Open the door and place towels to catch water. Allow all ice to melt completely.
• 2. Check door gasket: Inspect for tears, gaps, or hardened sections. Replace the gasket if it does not seal evenly.
• 3. Verify fan operation: Ensure the internal circulation fan runs when cooling. Replace if not operating.
• 4. Avoid overloading: Do not pack bottles tightly against the back wall; leave space for air circulation.
• 5. Monitor usage: Reduce door openings and avoid placing warm, humid items inside.