I remember when I first bought my central cooling system and the HVAC supplier suggested that I enroll in a professional maintenance program. I was reluctant to invest any more money into new and updated equipment. Since I realized the importance of correct upkeep and preventative measures I decided to attempt these services myself. I went online, watched how-to videos, and learned quite a bit from informative articles. Despite the cost and function of a whole-home cooling system the mechanics are not all that complex. I bought specialized tools to better handle the requirements and made a point to tackle the job every springtime. Removing the outer building and accessing the inner workings of the cooling component was not difficult. Because of the warm, moist conditions, there is constantly the potential for mold, mildew, and algae growth. The other thing, dust and other debris, tends to settle on the numerous components. If these contaminants are allowed to build up, they could devastatingly impact performance by restricting airflow which leads to longer running times and higher energy bills along with diminished comfort and greater wear and tear which can cause malfunction. I was conscientious about cleaning everything from the condensate drain to the fan blades. I lubricated all moving parts, tightened electrical connections, verified the refrigerant charge, and checked the performance of the control unit. Despite my yearly and careful upkeep, the air conditioner eventually required a repair that I was unable to handle on my own. Although the cooling system was only four-years-old, the parts and labor were not covered by the manufacturer’s warranty. Because I had handled the annual maintenance on my own rather than paying a licensed supplier, I’d failed to meet the stipulations of the warranty.