It is much more efficient for the air conditioner to allow a gap between the target temperature and the trigger temperature. Without that, it just has to run co

It is much more efficient for the air conditioner to allow a gap between the target temperature and the trigger temperature. Without that, it just has to run constantly to make sure that it isn't 0.01 degrees warmer than requested. And that may be what you want it to do, but it's an incredibly pointless waste of energy.