Sherwin M Pleasant Plains , AR December 29, 2020 Appliance: General Electric Dishwasher GDF520PGJ2BB Ge Dishwasher Gdf520pgj2bb: Would not start. Acting like the door was open and door switch checked out ok. How to replace Dishwasher Main Control Board. Replaced circuit board. Thanks to the help I found on the internet that directed me to your site. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes