The TRUE 801811 Refrigerator Defrost Heater is a replacement component rated at 650W and 115V for compatible commercial refrigeration equipment. It provides heat during the defrost cycle to help remove frost buildup from the evaporator. Proper defrost operation supports airflow, heat exchange, and consistent cooling performance. This component is useful when servicing refrigeration units with a faulty heater or recurring frost accumulation. Before ordering, verify the refrigerator model, voltage, wattage, and existing part specifications to ensure compatibility. Timely replacement of damaged components helps maintain reliable refrigeration operation and supports routine equipment maintenance in restaurants, supermarkets, and other commercial foodservice environments.