One of the more basic services that make life more comfortable is the A/C service. A lot of homes are in places where the summer months can be brutal, making access to air conditioning a matter of survival, or at least seeming so. It helps to develop a personal relationship with the air conditioning service; this can life a little easier when the repairman knows the air conditioning system, especially as it ensures that he knows any unique problems relative to said system. Of course, there are some things that a customer can do to make the job easier.
The simplest thing to do is to have a technician look over the air conditioning system once a year, usually during the cooler months. The advantage is that the technicians do not usually mind picking up a little extra work during the slower months, and it ensures that the system will be in optimal condition during the hotter months. In turn this means that the A/C will likely not need repair during the summer, making life bearable during those hot months. By spending a little to have the unit inspected and possibly dealt with during the off months, it also means that the unit will likely not need repair during the summer, possibly saving some money and definitely avoiding long waits for service.
A good A/C service should help its customers know about such inspections, as well as offer instruction on how to deal with basic troubleshooting. While it may sound counter-intuitive, it is not only great for customer service but also allows the to focus to on the more important calls. They also generally offer a wide variety or services dealing with central heating and air, so they may be able to deal with virtually any problem dealing HVAC systems during the year. It is just a matter of calling customer service and finding out which services are available; there may be more services available than you think.