The Whirlpool W10843811 diverter motor is designed specifically for dishwashers. It is essential for proper water distribution during the wash cycle. This motor turns a diverter disc, which directs water flow between the upper and lower spray arms. The diverter motor receives electrical signals from the dishwasher's control board. The motor activates according to the wash cycle selected, rotating the diverter disc. This disc positions itself strategically in the water path, directing pressurized water flow to either the upper or lower spray arm. This ensures that water pressure is evenly distributed throughout the wash cycle, resulting in effective cleaning. The diverter motor is a necessary component only found in dishwashers. A faulty diverter motor can cause uneven water distribution.