A central air conditioning system is one of the best comforts to have during the summer. However, keeping it running all the time comes at a price. As a homeowner, you need to know the basic rules of how to maintain and care for an AC system. This way, you are not only maximizing appliance efficiency, but you are also saving money. If you are concerned about high utility bills during summer, you need to reassess your habits as you become more mindful of how you use your AC system.