goodman central heat and air troubleshooting

outside unit is working properly...however there is no cool air (no air) blowing out the vents inside the house

It worked fine all summer until last few months. When I have it to cool it blows air but not cold air. Now that I want heat it blows cool air and not hot air. It took it 30 minutes to heat my 1000SF home from 64 degrees to 65 degrees. What could be the problem?

I have a Goodman central heating and air unit and just when the temperature starts dipping into the 30s this thing is failing. Air is blowing through vents, but it is NOT warming up in my home and the auxiliary is on. This unit is just five years old. Argh... ? Any thoughts on what could be wrong...

My Goodman Central heat and air unit stopped working around 2:00 am this morning. The fan outside is not moving, blower inside, etc. nothing working. We had the thermostat turned to 72 degrees, fan on auto, and set on norm. I have tried turning fan to on position, set unit on emergency heat but...

When I turn the heat on I get no response at all. I had this problelm before and had to replace the thermostat wiring. Now that I want to check to see if it's the same problem, I can't seem to remember (old age ah) which wires at the unit to wire togeather. (there are a red, yellow and a white if...