Just moved into a rental house on a temporary basis and ran into a problem. The house has Ultra V Tech 80 furnace which will not start. There is no heat and the blower will not blow when on auto. I opened it up and checked the LED. It is blinking non-stop which does not match any of the codes on the sticker on the door. Anyone have any ideas or at least a link to the owners manual? I have already tried resetting breakers, changing filters and cleaning the flame sensor.