Customer Questions and Answers for Defrost Bimetal by Whirlpool

Hello Steve. Sounds like your defrost drain has frozen up. This isn't a big deal, just time consuming. You have to remove the back wall of the freezer compartment and get you hair dryer. The defrost drain is in the floor in the back of the freezer compartment (usually in the center). I usually use a paint scraper to remove all of the ice I can get out without damaging any Styrofoam. Then use the hair dryer to start melting ice. When the ice is gone except for the ice in the drain hole, I use a screwdriver to transfer the heat,(I stand the screwdriver up on the ice in the hole and heat the screwdriver shaft with the hairdryer). This method works great but is, as I said, a time consuming endeavor. You can speed things up if you have a portable steamer used for steaming clothes. It will melt the ice faster but you have to also use a shop vac to catch all of the water it produces. Once you get the drain clear, use a piece of weed eater string to chase the entire drain (never use wire or anything that can puncture the rubber drain tube!). After this is complete, I always put about a tablespoon of white vinegar in the drain to prevent algae formation which will also cause the drain to stop up again. Next, set the freezer to one number warmer, which will prevent the drain from freezing again if it froze due to excessively low temperatures. Good luck and I sure hope I've helped!