Air conditioning system repairs can be quite expensive, especially if you do the math. They add up to some point when you realize that it would be more cost efficient to just buy a new unit. Wrong! The main reason behind these issues is the lack of maintenance. When you maintain the system regularly, these repairs will lose in frequency, but you can also prevent the costly ones. Regular maintenance begins with some simple inspections. Having the experts at http://www.relenergy.com replace small parts is better than calling them to fix the whole unit or even replace it. The same rule applies to most of your electronics though.