The pressure switch error just came on on my Ameristar Furnace this morning. I'm unemployed and have to fix it on my own if possible. What are something I can do to remedy this?

I have a comformaker furnace and the heat will run for roughly 5 minutes and then shuts off with blower still running. I noticed the duct going up from the main unit is extremely hot (not sure if this is normal), but the light unit blinks 5 times which says "open rollout swith error"? What does...

I tried to start up my furnace this weekend and I got 1 click and then a 2nd click and the error code for pressure switch. I need to know what my next step is to disgnose the problem and get it running since the temps are dropping to just above freezing at night now. I had the blower motor...

It's Easter morning... and it's colder than Christmas morning... and my 5-year new Goodman GMNT furnace is not working. Getting 4 blink code, main / auxiliary switch error. I have turned unit on and off and have it working, however when it shuts down and I think the blower continues to run causing...