Robert C Olyphant , PA November 01, 2022 Appliance: General Electric Dishwasher GDF630PSM0SS Ge Dishwasher Gdf630psm0ss: Main control board in ge dishwasher. How to replace Machine Control Replacement Kit. I replaced the Machine Control Board and both wiring harnesses. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours