First, while you are outside, take a look at your condensing unit and make sure that it is clear of leaves and debris. Any blockages could make your system work inefficiently. Although a professional is required to clean it properly, homeowners can prevent issues by making sure it is clear of debris.

Next, check the A/C filters inside your home. Dirty filters can restrict air flow and cause your system to work harder than necessary. If you have more than one system in your home, you will have multiple air filters, so be sure to change all of them. While you are changing the filters, check your return grille and vacuum the dust or wipe it clean to keep your newly installed filter cleaner longer. The return grille is the metal grille that allows air to flow through that is directly in front of your filter. Do you have a media filter in your attic? This type of filter works directly with your air handler or coil and is usually located in the attic. This filter usually needs changing once or twice a year.