I know that there are a lot of people that would be nervous when buying a used air conditioner, and there are many good reasons for not wanting to buy a used air conditioner. Whether you are buying a window air conditioner or a central air conditioner, you should definitely cautious when buying a used air conditioner. Since these air conditioners were owned before, you have no warranty when purchased a used air conditioner. Also, there is no way to know how long your air conditioner is going to last, and you might not even be able to tell if your air conditioner will work when you get home. For most people, it would be much cheaper and safer to purchase a new air conditioner. You can have the peace of mind knowing that your air conditioner will work and will be covered in case of an accident. However, should everyone stay away from an air conditioner? Who should buy a used air conditioner? Well, if you can’t afford a new air conditioner, then you might want to consider purchasing a used air conditioner. You might be able to find a smaller or cheaper air conditioner, but if you find a great deal on a lightly used air conditioner, then consider yourself lucky. Also, if you don’t plan on using the air conditioner for very long, a used air conditioner might be right for you. Obviously, you should check to see if the air conditioner is working when you buy it, but if you only need it for one year, then you might not need a new air conditioner.