The dishwasher wash arms distributes water to clean dishes thoroughly. It is typically located at the bottom and/or top of the dishwasher and spins in a circular motion to cover all areas of the dishwasher. The wash arm is responsible for removing any food particles, grease, and grime from dishes, ensuring that they are spotlessly clean. Most dishwashers have two wash arms, one at the... https://partsfe.com/dishwasher-parts/wash-arm