How to Clear the Drain Tube
Your refrigerator has a drain that leads to the exterior drain pan beneath the refrigerator. Occasionally this drain can become clogged resulting in standing water inside your refrigerator. In the freezer, standing water will become ice and may result in defrost problems or inadequate coldness.
Before clearing the drain tube, unplug the refrigerator or shut off the power at the fuse box or breaker panel to avoid an electrical shock hazard.
There is a drain leading out of the freezer and another from the refrigerator. In top freezer models, the freezer may drain the water onto the back wall. It actually runs down the wall to the refrigerator floor drain. In other cases, there may be a drain tube leading out the freezer. The refrigerator drain is either located on the floor of the refrigerator, beneath the vegetable crisper, or in the wall behind a drain funnel.
In side-by-side models, the freezer and refrigerator will probably each have an outlet to the drain pan under the appliance.
Clear the drain by forcing a solution of water and bleach or water and baking soda into it with a basting syringe. If the solution will not flow through, slide a length of ¼ inch flexible tubing into the drain tube to push the clog through to the drain pan. Remove the tubing after clearing the clog.