I had one of these that shorted the board several months ago. Same symptom - Green light, wouldn't do anything or go into diagnostic. I installed new board, and it immediatly shorted out. Got another board, but this time I checked everything out. In my case, I replaced the shifter before replacing control. Ohmed out shifter, and was not the same as the new one. Put in control, and BAM worked like new. I Agree PK, these washers suck if your the owner of them. It was the only board that I have had shorted so far. Morale of story - I'm checking out other components for short before replacing board the next time.