*** If you don't see your model number , please contact us to check it for you *** The Defrost Heater is an OEM part for Samsung refrigerators. It plays a crucial role in the appliance's defrost system, preventing the buildup of frost on the evaporator coil. By heating the coil at regular intervals, it ensures that the refrigerator maintains optimal cooling efficiency. These issues often arise due to a malfunctioning defrost heater, which can result from electrical faults, damage to the heating element, or issues with the refrigerator's thermostat or timer. A properly functioning defrost heater is vital for maintaining the efficiency and longevity of your Samsung refrigerator. Symptoms of a bad Defrost Heater include: The refrigerator is constantly running without maintaining the desired temperature. Frost accumulation on the back wall of the freezer compartment. The freezer section is cold while the refrigerator section is warm. Increased energy consumption as the fridge struggles to maintain temperature. This OEM Samsung part is also compatible with Sears/Kenmore. Fits Models: Samsung RF18HFENBBC, RF20HFENBWW, RF217ACWPXAA, RF217ACRSXAA, RF217ACPN, RF20HFENBSR, RF18HFENBSR, RF197ACWPXAA, RFG237AAWPXAA, RF197ACRSXAA, RF18A5101SG, RF217ACBPXAA, RF197ACBPXAA, RF217ACWP, RF20HFENBBC, RF20HFENBSP, RF197ACPNXAA, RF20HFENBSG, RF18HFENBSG, RF197ACWP, RF217ACPNXAA, RB194ACRS, RF18HFENBWW, RFG238AARSXAA, RF18HFENBSP Our Policy: * Please check ETA before placing the order. * Items returned not in original conditions are subject to a 50% deduction or deny any credit. The part must not have any type of damage, such as signs of installation by the customer, marks, or scratch. Please contact us through messages for the following reasons :Our respond time is 24 hours. If you did not receive your item within the ETA . If you received an item that is does not fit, please provide us your model and serial number to check. If you need to return an item . Item not as described for one of the following reasons (Item is defective, Doesn't match description or photos, Received wrong item, Missing parts or pieces, Arrived damaged). Thank You for Shopping!