Close this search box.

The Lifespan of an Air Conditioner


If you’ve been having trouble with your air conditioner recently, you may be wondering just how long your unit is supposed to last. The exact answer depends on the type of system you have in your Austell, Georgia, home and how well it was maintained. Keep reading to learn about the factors that affect an air conditioner’s lifespan and signs that your AC may be getting too old.

The Average AC Lifespan

According to the U.S. Department of Energy, today’s central air conditioning systems last an average of 15 to 20 years. Keep in mind, though, that this is an average — which means some units fail before 15 years, while others last several years past 20.

Factors That Affect Longevity

How long your specific central air conditioner system lasts depends on several factors. For instance:

  • How often it runs and how hard it works
  • Whether it is the correct size for your home
  • Whether it was properly installed with adequate space
  • How well the system is maintained
  • How often the air filter is changed

If your system is working overtime to compensate for its small size, poor maintenance, improper installation, or other issues, it will wear out more quickly than it otherwise would.

Signs Your Air Conditioner Needs to be Replaced

You don’t have to replace your air conditioner just because it is getting old. However, if you are paying for at least one major repair each year, you may be better off installing a new system. A new system will also be more energy efficient, saving you money on your electric bill.

Specific signs that your air conditioner may be close to failure include the following:

  • Noisy operation
  • Unusual smells
  • Humid indoor air
  • Frequent breakdowns
  • Constant running
  • Higher bills
  • Poor performance

Have you noticed any of these red flags recently? Give E. Smith Heating & Air Conditioning a call at 678-369-8866. One of our expert technicians can take a look at your air conditioning system and let you know whether it needs a repair or a full replacement. We also offer maintenance services to keep your AC unit in peak operating condition.

Image provided by Shutterstock

Compliance Settings
Increase Font Size
Simplified Font
Underline Links
Highlight Links