Day and night package unit model and serial numbers have faided off. This unit has 2 circuit boards, one for inducer other for heat control. Gas heat. Problem is blower will not start up unless I jump to green. Have changed circuit board and ignition module works fine but will have to change once summer is here because yellow is disconnected as a\c also will run if left connected. This I mean thermostat yellow wire. Thermostat is also new but that don't matter as I jump from rooftop anyway. So the question is has anyone had such a problem and how did you fix problem? Like any tech I got to get this figured out. There are 18 of these units all the same - day and night that work. Or anyone know where to get schematic?