The Whirlpool WPW10188389 is a vital component of your refrigerator, particularly the evaporator fan motor. This motor is crucial for maintaining your food fresh and your refrigerator operating efficiently. The evaporator fan motor is situated at the back of the freezer compartment and continually circulates air over the evaporator coils. These coils collect heat from inside the refrigerator. As the fan blows air over the coils, heat is moved away, enabling the refrigerant within the coils to absorb the heat. This refrigerant then travels through a compressor, where the pressure increases, raising the temperature. The hot refrigerant then passes through condenser coils that typically reside on the back of the refrigerator, where the heat is released into the surrounding room air.