Condensation or water droplets forming on the exterior cabinet or around door seals.

Safety first: Unplug the refrigerator before inspecting electrical heaters around the door frame.

Steps:

• 1. Check room conditions: High humidity can cause condensation. Use ventilation or dehumidification in the kitchen if possible.
• 2. Inspect gaskets: Ensure door seals are clean and undamaged. Replace if they do not seal properly.
• 3. Mullion heater: On some Siemens side-by-side or French-door models, a heater runs around the door frame. If condensation is heavy in this area, the heater may have failed. Access and test continuity of the heater circuit per service manual.
• 4. Door usage: Reduce frequent or prolonged door openings which introduce moist air.

Note: Slight condensation in very humid weather can be normal; focus on persistent or heavy moisture.