The Whirlpool WP67004188 Defrost Heater Assembly for Refrigerator helps prevent excessive frost and ice buildup on the evaporator coils, supporting consistent cooling performance. This replacement component works by generating heat during the refrigerator’s automatic defrost cycle, melting accumulated frost so that melted water can drain away properly. By maintaining a clear evaporato... https://www.partsmelange.ca/whirlpool-wp67004188-defrost-heater-assembly-for-refrigerator