Condensation forming on the glass door or around the door frame.

Safety: No internal electrical work is required for basic checks.

Steps:

• Reduce humidity: Use a dehumidifier in the room if ambient humidity is very high.
• Check gasket seal: Inspect and clean the gasket. Replace if it is damaged or not sealing.
• Limit door openings: Minimize how often and how long the door is opened.
• Door heater (if present): Some models have a low-wattage heater around the frame. If condensation is severe and persistent, have a technician check the door heater circuit on the main PCB.