My goodman furnace will not keep up in cold temperatures. Can I increase the amount of heat it puts out. Seems like air coming from vents is not that warm.

Hello I cleaned my furnaces flame sensor and it worked perfectly for a day. It works fine now but it still starts and then stops then repeats this process sometimes. Should I buy a new flame sensor? Or what's wrong with it please help.

I have a Goodman GMP Series gas split unit furnace that I had installed approx 12 years ago. I have had no problems at all until this week and there is no heat. Someone at the gas company said that it may be the glow plug. It does not light up at all when the furnace kicks on. I have called several...

My Goodman furnace was working just fine the other day, but now I can hear it trying to start up but nothing happens. The cold air works just fine. It has no pilot light, works with internal ignition. I've done what the maunal suggests to check before calling someone out but nothing has changed....

I am shopping for a new HVAC system, have received a quote that sounds very good but I have never heard of a Goodman system. I trust the local dealer. What is the general feeling about Goodman products? My house is about 1250 sq ft, furnace proposed is 90,000 BTU Heat Pump is 14 SEER, located in...