While parked at home I have been leaving my A/C running at at 80 degrees while not inside. Should I leave a/c on or just run the vents? It’s 103 degrees in Texas daily
Get the vent covers (if you don't already have them) so you can leave them open even in the rain and leave them open. Don't bother leaving the fan running, hot air rises, so you will get natural convection.
Running the air/con provides no value and just consumes electricity.