Val M Lindon , UT May 10, 2022 Appliance: General Electric Dishwasher GDT655SMJ0ES Ge Dishwasher Gdt655smj0es: Error when dw door closed. Blinking lights and beep door open. How to replace Dishwasher Main Control Board. Replaced Control board - after various reset, power off and wire trace attempts. Note - the great video helped but failed to note the connectors had 'lock' strips on each, near impossible to get off with out breaking (I broke 4 of 5). Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes