My Comfortmaker Furance (GUG070A012N) will not always kick-in at the set temp level. The Thermostat is verified operational and good. Most times the heat will kick in, but the fan blower will not run. If I remove the panel and spin the fan manually, sometimes this will engage the fan and the...

My furnace was working yesterday and we did not turn it off, but it will not function today. I know there is electrical power at the unit; that there is gas supply; the filter is new; the inducer motor comes on when the thermostat is adjusted;but no flame appears. The inducer motor will remain...

I recently purchased a new Comfortmaker Furnace, the problems is it runs for approx. 4-1/2 minutes, shuts off and then comes back on in 2 minutes. I have had a couple of people check and they said that nothing is wrong with it. Any suggestions on what the problem might be?

I have a comfortmaker furnace that is vented with a 3" duct and a blower. Recently it started where the furnace will run through it's course , the glow plug will work, then the gas valve opens and you can see the heat in the exchange and then after a few minutes the blower will come on and heat...

I have a Comfortmaker Furnace (approximately 1998/99) and the fan will not turn on allow the furnace to heat. When I try to turn the furnace on it blows a 3 amp fuse at the blower motor. I removed the fuse and jumped it and all it will do is make a faint buzzing noise and not turn on. I can...