While it may be tempting to try, you should always have a professional like http://mistakenaircon.iwopop.com/ do your A/C tune up. Of course, you should still make sure you are maintaining your air filters and keeping the area around your outside unit groomed. What you should avoid is doing any HVAC service in Austin that is more substantial, and here is why:
You have no idea what you are dealing with. For instance, did you know that the coolant in your air conditioner may be a hazard to you and your environment if not handled properly? In addition, if you overfill your system with coolant, it can cause major problems. A professional has spent years learning about how to repair and service your system. They have both head knowledge and practical experience that you just can't learn in a day.
There are certain tools your technician has access to that you probably don't. For instance, if the fins on your condenser unit become bent, it can stop airflow. There is a certain tool that can be used to straighten these fins, which are somewhat fragile. Using the wrong tool could result in breaking the fins, which can be just as bad as having bent fins.
When a professional does HVAC service in Austin, he has the ability to find and repair minor problems in the system. Say you were refilling your refrigerant, and you didn't realize that the low levels were the result of a leak. Your unit could continue to leak that coolant, which again could be hazardous to you and the environment. A technician would be able to recognize the signs and fix the problem before your system leaks enough coolant to break down.
Tinkering with your air conditioner may seem like a fun and cost effective hobby, but when you are dealing with such an expensive piece of equipment, one wrong move could cost you dearly. Your unit should be serviced at least once a year, and it is strongly advised that you let a professional handle it for you.