Visible frost or ice buildup on the evaporator or internal walls, reducing performance.

Safety first: Unplug the unit before defrosting. Do not use sharp tools to chip ice.

• Manual defrost: Remove ice bin and leave the door open until all frost melts. Use towels to absorb water.
• Check door gasket: Inspect the door seal for gaps, tears, or dirt. Clean with warm soapy water and replace if damaged.
• Inspect defrost components: If frost returns quickly, test the defrost heater (if present), hot-gas valve, and defrost sensor for continuity and proper operation. Replace faulty parts.
• Reduce door openings: Minimize how often and how long the door is opened to reduce moisture ingress.