The Life Expectancy of Central Air Conditioners

Life Span

• Though estimates vary somewhat from one source to the next, the average central air condition has a life expectancy of roughly 12 to 15 years, according to the Consortium for Energy Efficiency and heat pumps should last about as long. Newer models typically have longer lifespans than older ones, thanks to improvements in technology. In order to get the maximum life out of a central air condition, proper installation and maintenance are key though.

Replacing Bits and Pieces

• Parts of a central air conditioner should be periodically replaced to keep the machine working well. Periodically change the air conditioner's return air filters at intervals of 30, 60 or 90 days, as laid out by the manufacturer. Clean filters allow air to run easily through the machine, preventing it from having to work harder and less efficiently. Change thermostat batteries twice annually in order to get an accurate reading, which will then allow for better use of your air conditioner.

Condenser Maintenance

• Keeping your central air conditioner's condenser clean goes a long way in helping it last for years to come. Install a fence as a barrier against animals who might urinate on the condenser, corroding the coils. Check the condenser to make sure it is level with the ground, as a tilted one inhibits proper water drainage and the functioning of the compressor contained within it, according to the Charlotte HVAC Guide. Also, ensure the condenser is not blocked or otherwise clogged by debris.

Professional Visit

• There are plenty of things homeowners can do to keep their air conditioners running smoothly, but a yearly visit from a professional is also a valuable investment. A certified HVAC specialist can safely examine the AC unit's electrical components to ensure they are in working condition and make sure refrigerant is at the proper level. A professional can also oil the air conditioner's motor and check the thermostat, according to the Carrier Corporation, making sure everything is in good shape.