Condensation or water droplets forming on the inside of the glass door.

Steps:

• Check environment: High humidity rooms will naturally cause more condensation. Use a dehumidifier if possible.
• Inspect gasket: Ensure the door gasket is clean and flexible. Clean it with warm soapy water and dry thoroughly.
• Minimize door openings: Limit how often and how long the door is opened.
• Door heater (if present): Some models have a low-wattage heater around the door frame. If condensation is severe and persistent, the heater circuit may have failed and the door frame heater or control board output may need replacement by a technician.