Excessive frost buildup on interior walls, baskets, and food; frost especially heavy near the door.

Safety first: Unplug the freezer before performing a full manual defrost.

• Inspect and clean gasket: Wipe the door gasket and cabinet mating surface with warm soapy water. Look for tears, gaps, or hardened sections.
• Check door alignment: Ensure the door is level and square. Adjust hinges if the door sags or rubs.
• Perform manual defrost: Remove food to a cooler, unplug the unit, and allow all frost to melt. Use towels to catch water. Do not use sharp tools to chip ice.
• Replace gasket if needed: Install a new Asko-compatible gasket if the old one does not seal. Warm the gasket with a hair dryer (on low) to help it conform.

After defrosting and gasket repair, monitor frost levels. Normal frost should be light and confined mainly to the evaporator area.