The car would physically stop at floor levels . DZ was high. Sometimes I'd shake the DO relay and the doors would start to open then close. So that's when I swapped the DO and DC relays in the controller and the same thing happened for DO again. I don't think its the board , I think it's whatever feeds DO. But I did notice when they upgraded the door operator to a MOVFR, they added another set of DO and DC relays at the bottom of the controller. Why I have no idea but I traced some of the wires back to D01 and D02.
