< Back to home

Central Air Conditioning Maintenance Checklist – What to do first?

Whether you’re a long-time homeowner or first-time home buyer, chances are high that you have questions about your central air conditioning system and what kind of maintenance should be done to keep it efficient and effective. We all know that having a yearly AC tune-up keeps it running smoothly but what else should you be doing? These maintenance tips will help.

Central Air Conditioning Maintenance Checklist:

  • Change filters regularly

Check filters monthly, especially during heavy use months. If it looks dirty after a            month, change it. At a minimum, change filters every 3 months to improve efficiency and air quality.1


  • Install a programmable thermostat

One of the cheapest and easiest ways to save up to $180 in energy costs and reduce your home’s carbon footprint is to automatically heat and cool your home while at work or sleeping.1

  • Clear areas around systems or units

Remove leaves and other debris from around system components to improve air            flow.1

  • Check refrigerant level

Too much or too little refrigerant will make your system less efficient, increasing             energy costs and reducing the life of the equipment.3

  • Clean evaporator and condenser air conditioning coils.

Dirty coils reduce the system’s ability to cool your home and cause the system to run longer, increasing energy costs and reducing the life of the equipment.3

  • Seal ducts properly

If ducts are leaky, more than 20% of the air moving through the system is leaking           into spaces you do not want cooled.1  Most service technicians will test the leakage rate and use duct sealant, a metal-backed tape, or aerosol sealant, to seal duct seams and connections.

  • Optimize air flow

If air flow in your air conditioning system is too high or too low, it may lead to higher utility bills. Service technicians can also test air flow and make any needed  adjustments for optimal performance.1

  • Install ceiling fans

Fans help cool your home by pulling cool air through the house and exhausting warm air through the attic.2

  • AC tune-up

And, it deserves to be mentioned again. Take care of problems BEFORE they              happen. Schedule an off-season air conditioner tune-up every year.

Make sure to tick off some items on this list now to save money and keep your cool later!


1,3 www.energystar.gov. ENERGY STAR is a program run by the U.S. Environmental Protection Agency and the U.S. Department of Energy

2 U.S. Department of Energy, www.energy.gov