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French-door center flipper (mullion) sweating, frosting or not folding

The hinged flipper on one fresh-food door seals the gap between the doors and has a small heater inside to keep it from sweating. Problems are either mechanical (flipper loose, broken, or not riding on its guide) or electrical (heater open). Check the mechanics and the guide on the cabinet first, then test the heater.

Single source ~30 min easyBrands: Whirlpool, KitchenAid, Maytag, GE, Frigidaire, Samsung, LG

Before you start

Unplug the unit before removing the flipper or testing its heater.
Support the door when working at the hinge end.

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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