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HomeRepair HelpMaytag Refrigerator RepairMaytag Refrigerator has frost or moisture buildup around the door Repair
Maytag Refrigerator has frost or moisture buildup around the door
If you have frost or moisture building up around the mullion flap between your refrigerator doors, the most likely culprit is a failed mullion heater that no longer heats to melt condensation—use a multimeter to check continuity and replace the heater if it shows an open circuit. If the heater tests good, inspect the door support and door guide next; worn, bent, or misaligned supports and guides can stop the flap from forming a tight seal and let humid air in. Also check the door gasket for twists, gaps, or torn sections, since a bad gasket lets warm air leak in and can make the freezer struggle to stay cold. Finally, confirm the door wasn’t left open for several hours; frost from a prolonged open door should clear after a defrost cycle once the seal is restored. If you need parts to fix the problem—mullion heater, door support, door guide, or a replacement gasket—enter your model number on RepairClinic.com to find the exact replacement part for your refrigerator.
01 - Maytag 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 - Maytag 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 - Maytag 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 - Maytag 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?
Fridge not cooling but freezer works — could a door gasket or mullion heater be the problem?
How do I test the mullion heater?
How do I find the right replacement part on RepairClinic.com?
I left the refrigerator door open and now there's frost — will it clear up on its own?
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