Freezer Seal Problems

Basics

• Freezer gaskets typically are made of synthetic materials like PVC. They help suction a door in place, keeping the unit airtight for maximum freshness. Over time, however, even the strongest of gaskets will begin to lose its sealing power, creating an air leak and possibly letting the door hang slightly ajar. A damaged gasket can make a big difference on your energy bill, as your freezer and refrigerator will have to work much harder to keep your food cold. One symptom of sealing issues includes the extra buildup of ice from the system overworking itself.

Diagnosis

• Your freezer may not be sealing properly for several reasons. The seal could be broken, there could be some item in the freezer impeding the door from closing tightly or the seal on your freezer may have loosened over time. You can check the gasket at nighttime by turning on a high-power flashlight and placing it, face-out, inside of the freezer. Turn off all the lights in your kitchen, and close the freezer door; if light leaks out, your gasket needs replacing.

Remedy

• Replacing your gasket can be a difficult, time-consuming task. You must buy a gasket that is the correct size for your refrigerator/freezer unit, and you should soak the gasket in hot water to soften it. Loosen up the retaining screws and pull out the old gasket, making sure not to take them all the way out. Slip in the new gasket carefully and then tighten the screws. You likely will need to adjust the screws several times to get the alignment and tension just right.

Prevention

• Prolong the lifespan of your freezer's gasket by opening and closing the door as infrequently as possible. It's also important not to let a thick layer of ice build up inside of the appliance; always defrost your freezer before the ice gets to be more than a quarter-inch thick. Put a cover over any liquids you put inside your freezer, as the freezer draws moisture out of uncovered containers of liquid, adding to the workload of your appliance.