The Whirlpool 12002754 is an equivalent frost kit intended for Whirlpool refrigerators with bottom freezers. This kit is essential for maintaining correct frost management within your refrigerator by preventing excessive ice buildup, which can impede performance and efficiency. The cause of frost production is moisture collection inside the freezer compartment. The frost kit addresses this issue by its components, which typically comprise a defrost heater, sensor, and timer.The defrost heater is in charge of periodically melting accumulated frost. When the control board activates the heater, it generates heat to defrost the freezer compartment efficiently. The sensor is crucial in preventing the defrost cycle from running too long, potentially warming the freezer.