Freezer is cooling but there is heavy frost or ice buildup on the interior walls, baskets, and around the door opening.

Safety first: Unplug the freezer before defrosting or cleaning. Water on the floor can be slippery; use towels.

Step-by-step checks:

• 1. Manual defrost: Remove food to another freezer or cool box. Turn off and unplug the unit. Leave the door open until all ice melts. Do not chip ice with sharp tools.
• 2. Inspect door gasket: After defrosting, check the gasket for cracks, tears, or areas that do not contact the cabinet. Replace if damaged.
• 3. Clean gasket and frame: Wipe the gasket and cabinet mating surface with warm soapy water to remove dirt and ensure a good seal.
• 4. Check door alignment: Ensure the door closes squarely. Adjust hinges if necessary so the gasket compresses evenly.
• 5. Drain channel (no-frost): On no-frost Gram freezers, ensure the defrost drain hole behind the evaporator cover is not blocked with ice or debris. Clear gently with warm water.

When to call a technician: If frost returns quickly despite a good seal and normal use, there may be a defrost system fault that needs professional diagnosis.