I am at a loss, furnace has a auto ignition, has tried to restart unit, but pilot does not appear to be one, air blows out of the vents, but no heat. :confused:

You may try to turn off all power to the nuit at the house main panel. Wait a few minutes and then turn back on and try it again. This is kind of a shot in the dark but if your unit is electronically controlled sometimes this cure will work. It could also be locked out from lack of ignition and this would recycle the furnace.

Is gas turned on? Sometimes people turn off gas valve during summer.