Is it Normal for Your Air Conditioner to Run All Day?
No, your air conditioner should not run all day, even in the middle of July in Charlotte or the Carolinas.
Your AC unit should not run all the time. If your air conditioner is running without cooling your home, that’s an additional issue. It’s likely and fine for an AC system to run more often at times. It should never run all day long, no matter the heat or weather outside.