Daniel U Iowa City , IA January 09, 2024 Appliance: General Electric Dishwasher GDF520PSJ2SS Ge Dishwasher Gdf520psj2ss: The LED light on the control board was constant on and there was no signal from the ui board. How to replace Electronic Control Board. I replaced the control board. Unfortunately, this did not fix the issues and I've ordered a UI board to replace as well. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes