My furnace only blows cool air

I recently (8 months)had a Fedders Ac System installed with a heat strip, but the heat does not seem to work properly. It blows out cool air and takes for ever to warm the house. The contractor has since moved to Dubai so I cannot get in touch with him. Is there anything I can check myself ?...

My furnace is a bryant model-cacf030aza 5yrs old, natural gas,forced air the problem is that the air coming out of vents is cool air , we have central air, but we made sure that the thermostat was set to heat. In the furnace we do not see any fire at all. It is on and it blows but the air is...

We have a ducane gas furnace that has blown cool air ever since it was installed, which has been for at least 5 years now. The past owner of this house has covered the only cold air return in our living room floor and we have since opened or created a cold air return in the basement for the time...

Hi again, I posted my situation a few days ago with very little response, so I wanted to follow up again before calling out a technician. I have a Goodman gas furnace, about three years old. It has electronic pilot ignition, which works fine and will enable the burner flame...the problem is the...

Hi, I'm a new member and thought I had already posted my question, but I can't seem to locate it. So, here I go again. Condensed version: Goodman Gas Furnace...2years old. Blows cold air. Electronic ignition...ignites flame burners, but they turn off prematurely after about 2-3min. Then after a...