Help,called a appliance repairmen for my ge dishwasher gdf620hsj6ss, said both boards were bad.i changed both boards and now I have no lights on control panel,press all buttons and it makes a dull sound.checked control board led and the green light is constantly flashing and I have a flashing amber/yellow light on child lock(have to press 2 buttons to turn of and on).checked board for power with multi meter and it has continuity.help,don't know what to do other then junk it.3 year old washer