Air conditioners rely on refrigerant in order to operate. Many people know this, but they don’t know why it’s true. Under most circumstances, it would be perfectly fine not to know about how your air conditioner works. Unfortunately, there are a couple of ways that the system can be drained of its refrigerant, which causes huge problems. It is best to know how the refrigerant interacts with your air conditioner so that you can more easily recognize when a problem occurs.