A Recommended Addition to the Samsung Heater Kit
One of the more pertinent items that technicians will replace when installing the drain kit and secondary heater kit is a new defrost sensor, as replacing it takes approximately 1 minute with the evaporator cover panel off.
If the existing defrost sensor is off-specification, it could reduce the defrost time of the refrigerator, causing some of the icing conditions that the Samsung refrigerator is notorious for.
Always confirm that this piece is compatible with your refrigerator prior to purchase. However, this specific sensor is compatible with almost all Samsung French-door refrigerators and side-by-side units.