The General Electric WD21X32938 Dishwasher Machine Control Board is a central electronic component that regulates and coordinates dishwasher operating cycles. It works by processing input from sensors and the control interface, directing power to the motor, valves, and heating elements based on selected settings. Installed inside the control housing, the board connects with the wiring... https://www.hnkparts.com/ge-wd21x32938-dishwasher-machine-control-board