Condensation or moisture forming on the inside of the glass door.

Safety: Avoid using abrasive cleaners on the glass door.

Steps:

• Check environment: Ensure the cooler is not installed in a very humid area without ventilation. Use a dehumidifier in the room if necessary.
• Inspect gasket: Look for gaps or damage in the door gasket and replace if needed.
• Limit door openings: Reduce the frequency and duration of door openings to minimize moisture entry.
• Door heater (if present): Some models have a low-wattage heater around the door frame. If condensation is severe and persistent, have a technician check the door heater circuit.

Note: Light condensation can be normal in humid climates; focus on preventing water from dripping onto shelves or labels.