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HomeRepair HelpRCA Refrigerator RepairRCA Refrigerator has frost or moisture buildup around the door Repair
RCA Refrigerator has frost or moisture buildup around the door
If you have frost or moisture building up around the door mullion flap, the most likely culprit is a failed mullion heater that is not heating to melt condensation. After checking the heater first, inspect the door support and door guide next, since warped or misaligned hardware can prevent the mullion flap from forming a tight seal and let humid air in. A damaged or twisted door gasket is another common cause and will let warm air enter, which can lead to frost buildup and a freezer that struggles to freeze. Sometimes the simplest explanation is a door left open too long; frost that forms after a prolonged open period will usually clear once the door is closed and the unit completes a defrost cycle. If you need replacement parts, you can test the mullion heater with a multimeter and replace worn supports, guides, or gaskets. Enter your model number on RepairClinic.com to find the exact replacement mullion heater, door support, door guide, or gasket that fits your refrigerator.
01 - RCA 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 - RCA 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 - RCA 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 - RCA 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 frost at the door be the problem?
How do I test the mullion heater to see if it needs replacement?
How can I tell if the door gasket, door support, or door guide needs replacing?
How do I enter my model number or part number at RepairClinic.com to find the correct replacement part?
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