[jdwilson3]

LJJMB, I had the same identical issue last summer.

IF you have 2 AC units and if you are so inclined:

1.Remove the CC unit (Thermostat) and insure the "plug in" cable is secure. The cable between the CC and AC is grey telephone cable with modular plugs (and is also the same stuff to connect the 2 AC units together).
2.Reset the CC unit to see if that worked. or...
3.Go up on the roof and remove the cover from the rear AC unit. Remove the BLACK fan cover, and check the same cables to insure they are secure, and then reset and try the CC unit again. or...
4.Remove the cable that leads to the FRONT AC unit, reset the CC unit again. If that didn't work...
5.Plug the cable in and disconnect the other cable and reset again.

If you have 2 AC units, with the symptoms you describe, one of your AC units has a bad board or the compressor has seized.

If you only have 1 AC, then...you won't get any AC unit the unit is replaced or repaired.

My front AC went bad, and this allowed the rear AC to run because I disconnected the cable to the front AC. Unfortunately, the rear went bad about 10 days later, so we had no AC. You're lucky, ours went out in Virginia and Texas in July.