The GE WR49X45545 Refrigerator Fill Tube Heater Kit used to prevent fill tube freezing to support reliable ice maker operation. This replacement heater kit is designed for compatible refrigerator models and warms the ice maker fill tube to reduce the risk of ice blockages that can interrupt water flow. It works by providing controlled heat around the fill tube, allowing water to pass ... https://www.hnkparts.com/ge-wr49x45545-refrigerator-fill-tube-heater-kit