Yesterday I decided to change the time on our thermostat since we changed times. I hadn't even done it before, and now it runs non-stop. When I have tried to diagnose the problem (thinking maybe I programmed it), I don't see where it is programmed at all; however, no matter if it is on air or heat, it continues to run heat (it was cold last night). Any idea what I might need to do? Could the thermostat be faulty for some reason? Or, maybe there is a wiring problem with the outside unit? Any feedback would be appreciated. Thanks!