In some refrigerator models, particularly "bottom-freezer" styles, you may find the drain hole located at the very bottom of the refrigerator compartment, tucked underneath the crisper drawers. The Purpose of the Defrost Drain

Locate the trough: Once the panel is off, look at the very bottom of the evaporator coils. You will see a metal or plastic tray with a hole in the center. That hole is your defrost drain. How to Clear a Blocked Drain

The defrost drain acts as a funnel. It carries that water through a tube down to a drain pan located underneath the refrigerator, near the compressor. The heat from the compressor then evaporates the water into the air, completing the cycle. Signs Your Drain is Clogged

The defrost drain can be located in one of the following areas:

For stubborn clogs caused by debris, a flexible piece of weed trimmer line or a pipe cleaner can be used to gently snake the drain. Once cleared, a small capful of baking soda and hot water can help keep the line fresh and prevent future clogs. Preventing Future Clogs

Sheet of ice: A thick layer of ice forming on the floor of the freezer.

If the drain becomes blocked by ice or debris like food particles, the water has nowhere to go. You will likely notice: