Excessive frost buildup on shelves, food packages, and interior walls.

Safety: Unplug the freezer before defrosting.

Steps:

• Inspect gasket: Check the door gasket for gaps, tears, or hardened sections. Replace if necessary.
• Door switch test: Press the door switch; the interior light should turn off and the fan may stop. If not, replace the door switch.
• Defrost manually: Remove food to a cooler, unplug the unit, and allow all frost to melt. Use towels to absorb water.
• Check defrost system: After defrosting, inspect the defrost heater and thermostat as described in other entries if frost quickly returns.
• Usage habits: Avoid leaving the door open for long periods and ensure it closes fully after each use.