Lynne M Fairhope , AL March 22, 2022 Appliance: General Electric Dishwasher GDF620HSJ4SS Ge Dishwasher Gdf620hsj4ss: My dishwasher is “dead”. No display or response. How to replace Dishwasher User Interface Control Board. Found discussion online that provided instructions on troubleshooting. Diagnosed: Bad UI board. The same blogger gave a link to a service manual that provided great detailed instructions on replacement. Everything then worked as it should. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes