Heavy frost buildup on shelves, walls, and food packages.

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

Steps to reduce heavy frost:

• Inspect door gasket: Look for tears, gaps, or hardened sections. Replace the gasket if it does not seal all around.
• Check door alignment: Ensure the door is level and not sagging. Adjust hinges if necessary so the door closes squarely.
• Avoid blocking door: Reorganize contents so nothing protrudes and prevents full closure.
• Perform manual defrost: Unplug the unit, open the door, and allow all frost to melt. Use towels to catch water. Do not chip ice with sharp tools.
• Verify defrost system (frost behind panel): If frost quickly returns behind the evaporator cover, test the defrost heater, sensor, and control as described in the E3/E4 scenarios.