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HomeRepair HelpGE Refrigerator RepairGE Refrigerator has frost or moisture buildup around the door Repair
GE Refrigerator has frost or moisture buildup around the door
If you’re noticing frost or moisture building up on the mullion flap or around the refrigerator doors, the most likely culprit is a failed mullion heater that isn’t cycling on to melt condensation. Start by testing the mullion heater for electrical continuity and replace it if it’s open. If the heater checks out, inspect the door support and door guide next—damage or misalignment can keep the flap from forming a tight seal. After that, examine the door gasket for twists, tears, or gaps that let warm, humid air in. An occasional frost patch can follow a door left open for several hours and will clear after a defrost cycle, but ongoing frost points to sealing or heater issues. These problems often present as a fridge door not sealing or symptoms that look like the refrigerator not defrosting. Enter your model number on RepairClinic.com to find the exact replacement mullion heater, door support, door guide, or gasket for your refrigerator along with the parts and repair instructions you need to fix it right.
01 - GE Refrigerator Mullion Heater
A defective mullion heater flap may not be able to heat up periodically to melt any frost or moisture that forms on the flap due to increases in room humidity. You can use a multimeter to test the mullion heater for electrical continuity to determine if the component is working. If the mullion heater has no electrical continuity you should replace it with a new one.
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Common
02 - GE Refrigerator Door Support
If the mullion heater flap has frost or moisture buildup, it's possible the door suport is damaged or misaligned and not allowing the flap to form a tight seal between the refrigerator doors. Inspect the door support for wear or damage and replace if necessary.
Common
03 - GE Refrigerator Door Guide
If the mullion heater flap has frost or moisture buildup, it's possible the door guide is damaged or misaligned and not allowing the flap to form a tight seal between the refrigerator doors. Inspect the door guide for wear or damage and replace if necessary.
Common
04 - GE Refrigerator Door Gasket
A door gasket should form an airtight seal around the appliance's frame to keep the cold air in and the warm air out. If the door gasket is twisted or torn, gaps can form that will allow warm air in, resulting in the freezer not freezing properly. Inspect the door gasket for any damage and replace with a new one if necessary.
Common
05 - Refrigerator or freezer door left open
If the freezer or refrigerator door was left open for an extended period of time (more than 4 hours), frost may have accumulated on the food and around the door opening. The frost should go away after the door is closed and the refrigerator goes through a defrost cycle.
Common
Frequently Asked Questions
Why is there frost or moisture buildup around my refrigerator door?
Freezer cold but fridge warm — could a bad door gasket cause that?
How can I test the mullion heater to see if it needs replacing?
Refrigerator door not closing properly — should I check the door support or door guide?
How do I enter my model number or part number on RepairClinic.com to find the right replacement part?
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