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HomeRepair HelpE-Wave Refrigerator RepairE-Wave Refrigerator has frost or moisture buildup around the door Repair
E-Wave Refrigerator has frost or moisture buildup around the door
If you have frost or moisture building up on the mullion—the vertical flap between your refrigerator doors—that usually means the mullion heater flap is not heating enough to melt condensation. The most likely causes, in order, are a defective mullion heater (test it for continuity with a multimeter), a damaged or misaligned door support that keeps the flap from sealing, a worn door guide that prevents proper closure, or a twisted or torn door gasket that lets warm, humid air in and can cause the freezer not freezing properly. Less likely, the buildup could simply be from a door left open for several hours; that frost should clear after a defrost cycle and a good seal is reestablished. Check the mullion heater and the door hardware for visible wear and alignment before replacing parts. Enter your model number on RepairClinic.com to find the exact replacement mullion heater, door support, door guide, or gasket that fits your refrigerator and get repair instructions tailored to your unit.
01 - E-Wave 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 - E-Wave 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 - E-Wave 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 - E-Wave 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 on the mullion between my refrigerator doors?
How do I test the mullion heater to see if it needs replacing?
My freezer is cold but the refrigerator is warm. Could the mullion or door gasket be the cause?
How do I know whether to replace the door support, door guide, or door gasket?
How can I find and buy the correct replacement part on RepairClinic.com?
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