Condensation or moisture on the outside of the refrigerator doors or between French doors.

Safety first: Unplug the refrigerator before accessing heater wiring. Moisture can make floors slippery; wipe up water promptly.

Steps to resolve:

• Check energy saver setting: If your KitchenAid model has an energy saver or moisture control switch, turn it OFF to activate door heaters.
• Clean gaskets: Wipe door seals with warm soapy water and dry. Ensure they make full contact with the cabinet.
• Reduce humidity: Use a dehumidifier or run air conditioning in very humid environments.

If condensation persists along the mullion even with heaters enabled and good gaskets, the mullion heater may be faulty and should be tested and replaced by a technician.