Water Drain | Defrost

Ensure your freezer isn't set too cold, which can cause the drain line to freeze.

To appreciate the importance of the defrost drain, one must first understand the refrigeration cycle. In a frost-free refrigerator, the cooling coils, known as the evaporator coils, are located behind a panel in the freezer compartment. As the refrigerator runs, moisture from the air and food condenses on these cold coils and freezes into frost. To prevent this frost from building up and blocking airflow, the appliance enters a defrost cycle every 8 to 12 hours. A heater activates, melting the frost on the coils. This meltwater needs a place to go; without a drainage system, the freezer would simply fill with water or ice. This is where the defrost water drain comes into play. defrost water drain