Hi Everyone, So I've been having fun troubleshooting my furnace. I've fixed my own appliances, but this is my first shot at a furnace. It's a Carrier 58SXA080 gas furnace. Here's what started to happen: the thermostat would turn on to call for heat. The pump that clears the gas from the exchanger starts and run like normal. But then either shuts down, or just keeps on running. So I figured that the switch that gets triggered once pressure builds up is not working. When I mess with the part I circled in the picture, I start to hear the ticking and the burner ignites. Then the blower eventually turns on and I get heat. This works for a day or two, then I have to repeat the procedure all over again. So I think I need to replace the part, but what's it called. Here's the pic: [IMG]http://www.nsofttech.net/fpic1.jpg[/IMG] Thanks!

Hi all I just had Goodman GCH95070CXAB furnace installed. I am pretty sure it is a 2 stage furnace. Question #1: what exactly is it supposed to do different, being 2 stage? So far, I do not hear any difference. Please, try using layma's terms, I simply need to know what the difference supposed to be. I also have Honeywell TH6220D t-stat. I was told by installer that it is two stage t-stat for 2 stage furnace. When it was installed, I flipped through installer instructions for it and found 2 pages of various schematics on how it is supposed to be routed, based on what furnace I have. I brought this to technician attention, he scratched his head, told me it's all color coded, and he'll "connect it the way he always does". As a result, I am suspicious that t-stat is not properly set for my furnace. Hence, I do not tell any difference in operation vs my 10yo Payne I had before. Please, advise. Here's copy of installation pages [IMG]http://i302.photobucket.com/albums/nn101/ukrkoz/honeywell_pagenumber001.jpg[/IMG]