Excessive condensation or moisture on the glass door.

Safety first: No internal electrical work is usually required, but unplug the unit if you need to adjust the door or gasket.

• Ambient humidity: In very humid environments, some condensation is normal. Use a dehumidifier in the room if possible.
• Gasket check: Inspect the door gasket for gaps or damage. Close the door on a sheet of paper; you should feel resistance when pulling it out. Replace the gasket if it does not seal.
• Door heater (if present): Some glass doors have an anti-condensation heater. If the door is unusually cold and sweating heavily, the heater may have failed and may need replacement by a technician.
• Usage habits: Minimize door openings and ensure the door is fully closed after each use.