The Frigidaire 5304496284 Freezer Defrost Heater removes frost from the evaporator to maintain proper airflow and cooling inside the refrigerator freezer. This replacement heater uses electrical resistance to produce heat during the defrost cycle, warming the evaporator surface and melting accumulated frost. Keeping the evaporator clear supports consistent airflow and temperature cont... https://www.partsmelange.ca/frigidaire-5304496284-freezer-defrost-heater-for-refrigerator