GE Condensation and Corrosion Around Mullion Heater Area

Freezer has visible rust or moisture around the door frame or on exterior surfaces

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

High humidity environment, Failed mullion heater (if equipped), Damaged door gasket, Poor door seal

How to Fix / Troubleshooting

Safety: Unplug the freezer before inspecting wiring for any mullion heaters.

Steps to reduce condensation and rust:

  • Improve environment: Use a dehumidifier in very humid rooms and ensure good air circulation around the freezer.
  • Inspect gasket: Replace a damaged door gasket to reduce moist air infiltration.
  • Check mullion heater (if present): Some GE freezers have a small heater around the door frame. Access the wiring per the tech sheet and test for continuity. Replace the mullion heater if open.
  • Clean rust: Lightly sand rust spots and treat with an appliance touch-up paint to prevent further corrosion.

Note: Some surface condensation is normal in very humid conditions, but persistent moisture indicates a sealing or heater issue.

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Repair Difficulty

Medium 3/5

Required Part

Mullion Heater
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