Whether it’s in the workplace or at home, it’s imperative to have the cooling system maintained regularly. There are some people who are tempted to work on their own cooling systems, but it is not wise to do so. If you work on your own cooling system without being HVAC certified, there is a good chance that you don’t know what you are doing. Also, being a non-certified HVAC worker means that the warranty on your cooling system could be voided if you choose to work on it. So be smart and make sure to call up the HVAC professionals!