How to Maintain Your Air Conditioning System

October 03, 2025

As the temperatures outside rise, your air conditioner is always running in the background to keep your house comfortable. While energy bills often rise alongside energy usage, there are a few strategies that can help you keep your air conditioning system working efficiently. In this article, we review some ways you can keep your air conditioner running well, including:

  • Check and replace your air filter regularly
  • Clean your outdoor condenser unit
  • Schedule annual professional maintenance
  • Maintain proper airflow throughout your home
  • Inspect your thermostat and system settings

Keep reading for details on how to maintain your air conditioning system.


Keep your AC running at its best with Advanced Air!

At Advanced Air, we know what it takes to keep your air conditioning system running at peak performance all summer long. Contact us today to discuss AC maintenance services and schedule your system tune-up.


Check and Replace Your Air Filter Regularly

Your HVAC system relies on an air filter to prevent dust, pet dander, and pollen from settling into its internal parts. This keeps particles from building up and damaging your system, forcing it to work harder.

After a while, the air filter becomes clogged and can’t do its job. This means less airflow, making your air conditioner work harder. It can also lead to damage.

To keep your air conditioner running well, you should put in a new air filter a few times each year and check it at least once every month during the summer, when the air conditioner runs the most often.

Some people are okay with replacing their air filter every three months. However, if you have pets or someone in your house has allergies, you should probably replace it more often, like once every month.

Clean Your Outdoor Condenser Unit

Blocking the area around the outside part of your air conditioning system is a bad idea because it keeps it from running well. You should also make sure the condenser coils are clean. When they’re clean, the air conditioner can work well. If you have tall grass, leaves, or other stuff around the unit, it has to work hard and use more electricity.

Make sure nothing is within two feet of the air conditioner. This includes grass clippings, leaves, and bigger stuff. You can hose it down every once in a while, but make sure you turn off the power to the unit so you stay safe.

Schedule Annual Professional Maintenance

Your air conditioner might be doing a good job keeping your house cool, but you still need to take care of it. You should have a professional come out every year to clean and inspect it. This is called a tune-up. Tune-ups let you catch little problems before they turn into big problems. They also help you make sure your air conditioner doesn’t break down.

When they’re there, the technician will:

  • Check refrigerant levels and look for leaks
  • Clean the condenser and evaporator coils
  • Test and adjust electrical components
  • Lubricate moving parts to keep them from breaking down

Advanced Air has a service plan you can enroll in to help you stay on schedule and not forget to do a tune-up.

Maintain Proper Airflow Throughout Your Home

You should make sure that you don’t have vents blocked. You should also make sure you don’t have registers blocked. This means that you don’t have anything around them. You don’t want rugs, curtains, or furniture blocking them. If they get blocked, then your system can’t work well. That means it has to use more electricity.

You should also check the ductwork you can see for leaks, gaps, or blockages that could keep air from moving. If some rooms in your house feel warmer or cooler than others, or if you think not enough air is coming out of them, then they might have a leak. You should fix those problems right away so that your electric bill doesn’t go up.

Inspect Your Thermostat and System Settings

Your thermostat is important because it tells your air conditioner when it needs to work. Something as simple as an incorrect setting or a dying battery can affect how cool your home stays.

If your AC system isn’t working efficiently, check your thermostat. Make sure it’s set to “cool,” and that the temperature is where you want it. Also, if your thermostat isn’t hardwired in, make sure you change out its batteries at least once every year.

For many households, upgrading to a programmable or smart model is a simple way to cut down on their utility bills without sacrificing comfort. A modern thermostat lets you make custom schedules based around your household’s routines.


Need a service plan? Advanced Air makes maintenance easy.

When it’s time for routine AC maintenance, Advanced Air is here to help with fast and convenient scheduling and no-surprise pricing. Contact us today to schedule your service and discuss our CoolClub maintenance plans.


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