Waiting for your air conditioner to display some sort of problem before scheduling repairs is not a great way to keep the system in good shape. Most of the issues that can afflict your air conditioning system aren’t going to display obvious symptoms until they are pretty far along. That means that by the time you know that your air conditioner is dealing with some sort of issue, it likely will have already been damaged to an extent. If you want to keep your air conditioner in good condition, and pay lower repair costs in the long run, you should be scheduling preventive maintenance for your system on a regular basis.
Maintenance allows your technician to find and resolve problems with the system before they have the chance to develop far enough to cause damage. This can reduce the odds of a serious problem developing with your system by up to 90%, and improve the energy efficiency of your system buy up to 40%. This is the single best way that you can ensure that your air conditioner in good shape for as long as possible.