The General Electric WD21X31904 Dishwasher Configured User Interface Control Board provides the electronic interface needed to select and monitor dishwasher functions. This control board receives input from the user through the dishwasher’s control panel and communicates those selections to the appliance’s main control system. It used to manage user commands such as cycle selection, a... https://www.hnkparts.com/wd21x25728-general-electric-repl-wd21x31904