Melvin E B Calabash , NC September 15, 2022 Appliance: Samsung Refrigerator RF217ABRS/XAA-0000 Samsung Refrigerator Rf217abrs/Xaa-0000 / : Ice buildup. How to replace Refrigerator Sensor Cover. I replaced the broken cover for the sensor. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes