The Whirlpool WP61001846 Refrigerator Defrost Heater Assembly removes ice buildup around the evaporator to maintain proper airflow and temperature balance. This replacement heater uses electrical heat during the defrost cycle to clear accumulated ice from the evaporator area. Regular defrosting keeps air passages clear and supports consistent refrigerator performance. It is suitable f... https://www.partsmelange.ca/whirlpool-wp61001846-defrost-heater-assembly-for-refrigerator