Condensation or water droplets forming on the door gasket or around the door frame.

Safety: No internal electrical work is required for basic checks; unplug only if removing panels.

• Clean gasket: Wipe the door seals with warm soapy water to remove grease and debris that prevent proper sealing.
• Check for gaps: Close the door on a sheet of paper and pull it out around the perimeter. If it slides out easily in spots, the seal is weak there.
• Adjust hinges: Align the door so the gasket contacts evenly.
• Heater check: On models with a door frame heater, if condensation is excessive, the heater circuit may have failed and may require professional diagnosis and replacement.