Below you will find a list of common tips for saving money on your air conditioning. Set your thermostat higher - at least into the mid 70's F. Clean the indoor and outdoor coils of your air conditioner unit. Check that the refrigerant is at the proper level - typically done by a professional Avoid running appliances (such as a dishwasher) that radiate heat until night time. Make sure your house is closed up tightly during the day. Check (and change as necessary) any filters regularly Make certain your ductwork is cleaner yearly. Make certain your attic ventilation is adequate. Get a programmable thermostat. Consider a "whole house" fan.