When an air conditioning system breaks down, the question that may first pop into your mind when calling over a technician is this: does the unit need to be replaced? Unfortunately, it’s very difficult for most homeowners to tell on their own. However, calling a technician into your home at the first sign of trouble can save you a lot of money on replacement costs, as the issue may only require a simple repair. Let’s take a look at some of the signs that your AC is nearly done for and what you can do to ward off AC replacement.