If your washer pumps but fails to spin or agitate, it might be due to a faulty sensor assembly (6501KW2002B). This critical component, also known as a rotor position sensor, monitors the rotor's direction and speed, reporting to the control board. A common failure symptom is the "LE" error code indicating a locked rotor. This genuine LG sensor assembly is essential for proper washer function. Before starting your repair, power down your washer. Check your washer's model number for compatibility before purchasing.