jr0907
Jan 2, 2009, 12:34 PM
It's a Payne Gas Pack forced air furnace and A/C unit. At first the a/c functioned properly during the summer,now in winter the heat would'nt work. It's a unit that sit's on top of the roof in a apartment complex. First I thought it would be the tstat so I replaced it with a upgraded flux 400 series mercury low voltage tstat, that did'nt do it. Then I replaced the spark ignition module and gas valve and I also replaced the contacter and step down transformer. There is 120v going in to the transformer and 24v coming out to the ignition module,24v at the tstat. Nothing functions!