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

Safety: No internal electrical work is typically required; unplug only if adjusting door or gasket near wiring.

Steps:

• Check room conditions: High humidity environments will naturally cause more condensation. Use a dehumidifier if possible.
• Inspect gasket: Look for gaps between the gasket and cabinet. Warm the gasket gently with a hair dryer and reshape to improve the seal.
• Adjust door alignment: Tighten or adjust hinges so the door closes squarely.
• Door heater (if present): Some models have a low-wattage heater around the frame. If condensation is severe and persistent, a failed heater or control may be the cause and should be checked by a technician.