5 Quick Ways to Ruin Your Air Conditioner (Are You Guilty?)
Mistake #5 -- Cranking the Temp Way Down

Setting your thermostat to 60°F won't cool your house faster---it just keeps your AC running longer, wearing it out quicker.
What to do: Set your thermostat between 72°F--75°F and adjust slowly. Give your system time to catch up without overloading it.