Well I figured out the problem, and it wasn't the furnace itself. I had checked the roof cap once before, but I had not removed the top cover. While checking to see if the gas orifice was plugged, I kept hearing this clickity click periodically which sounded like birds walking on a metal roof. But e...

I have a Coleman DGAA077BDTA that has will not stay lit. It will light, burn for a few seconds, and then go out as the blower kicks in. The furnace will repeat this process for a while and then kick out a ignition failure code. I have had out a tech, they suggested that replace the flame sensor, whi...