As air conditioning systems age, they begin to develop problems as a result of natural wear and tear. This is true for even the most well-maintained and cared for AC units. You might notice that your repair needs become more and more frequent, or that your air conditioner is making unsettling noises.
If you notice a sound such as hissing or grinding coming from your AC cabinet, this could indicate you need repairs. However, eventually your system will need to be replaced, but how do you know when it is truly time?