My house AC unit is blowing cold air but not much air is coming out of the vents. It will shut off and on at the thermostat. I believe from hearing some history that the coil can freeze up. Does this sound like the case and if it is, what can I do to fix it myself? Most importantly, what causes...

I have a trane gas furnace. When I turn it on it blows cold air. I opened the panel and saw that its not lighting. Thanks for any imformation.

My central heat/air system Bryant Heater CU5830C175 only blows cold air. If the pilot light is out, how do I turn it on? Thank you.

I would like to know why my unit is blowing cold air when it is set on HEAT?:confused:

I have a carrier gas pack unit and the cooling part works properly. It's starting to get cold, so I turned on the heat, but only cold air blows out of it. I've contacted my gas company and they said there is no pilot light, so there is no way it could've gone out, and theytold me I should contact...