The Hotpoint GE Refrigerator Defrost Board Part # WR55X10397 WR55X21623 is a crucial component for maintaining the proper functionality of your refrigerator. Specifically designed for Hotpoint GE models, this defrost board helps regulate the defrost cycle to ensure your freezer runs efficiently. Made to the highest standards of quality and compatibility, this genuine part guarantees optimal performance for your appliance. Trust this defrost board to keep your refrigerator and freezer operating at their best.