The Fan Blade is an OEM part for Samsung refrigerators. It is responsible for circulating air within the refrigerator and freezer compartments, ensuring even cooling and maintaining the proper temperature throughout. The fan blade plays a crucial role in preventing hotspots and promoting efficient operation of the cooling system. Common causes of a bad fan blade include wear and tear over time, accidental impacts, or debris obstructing the fan's movement. Symptoms of a bad fan blade include: Unusual noises coming from the refrigerator Inconsistent temperatures within the compartments Frost buildup in the freezer Reduced cooling efficiency The refrigerator running more frequently This OEM Samsung part is designed to fit a variety of Samsung refrigerator models, ensuring optimal airflow and cooling performance.This part fixes the following symptomsNoisyDA31-00053A (AP4140903) replaces 2030110, DA31-00123A, PS4138326.