The General Electric WD21X33858 Dishwasher Configured Machine Control Board is a replacement component designed to regulate dishwasher operations by processing input from connected sensors and transmitting signals to electrical components. It operates by coordinating wash cycles, water circulation, heating, and draining functions for proper system operation. This machine control board... https://www.hnkparts.com/wd21x33858-general-electric-sws-configured-machine-control