Door glass fogs up or shows condensation on the outside.

Safety: Unplug the unit before checking any heater wiring around the door frame.

Condensation on the glass of a De Dietrich wine cooler is often environmental but can indicate a sealing or heater issue.

• Check room conditions: High humidity or very warm rooms can cause glass fogging. Improve room ventilation or use a dehumidifier.
• Inspect door seal: Ensure the gasket seals fully and is not allowing moist air to leak in.
• Anti-condensation heater: Some models have a heater around the door frame. If the frame feels cold and condensation is heavy, the heater may have failed and should be tested and replaced by a technician.
• Wipe and monitor: Clean the glass and monitor. Occasional light fogging is normal in humid climates.