Your thermostat tells your air conditioner when to turn on and off, so when your AC goes rogue and refuses to shut down, what are you supposed to do? Changing the thermostat settings doesn’t seem to do the trick, so what’s the issue?
It could be a lot of things. You’re going to need air conditioning repair to fix the problem, but in the meantime, you have to find a way to power it down so you don’t run up your utility bill. Fortunately, there are two safe options.