Ice forming around the door gasket or on the front edge of the cabinet.

Safety First: Unplug the freezer before inspecting electrical heaters.

• Step 1 – Inspect gasket seal: Look for gaps where warm, moist air can enter. Adjust or replace the gasket as needed.
• Step 2 – Reduce humidity: Use a dehumidifier in very humid rooms and minimize door openings.
• Step 3 – Mullion heater (if present): Some models have a heater around the door frame. If the frame is sweating heavily, the heater circuit may be open. This typically requires testing and replacement by a technician.