dirty air filter

Your furnace filter operates much like the air filter in your car, catching dirt and debris. And when the filter gets clogged, it’s time for a new one, because a full filter causes your heating/cooling system to work harder and burn up more energy. In the worst cases, a dirty filter can lead to expensive repairs and even system failure.

It pays, then, to check your furnace filter every month, though you may be able wait longer than that to replace it. Start by getting out your furnace’s owner’s manual. This handy booklet, with its detailed diagrams, will literally serve as your furnace road map.

Before you get started, make sure you have a replacement filter on hand. If you don’t, write down the existing filter’s size and purchase one at a home improvement store. Better yet, purchase two filters so you always have an extra on hand, especially for those months when your furnace is working frequently.

The next step is to turn off the electrical power to your furnace. Then locate the filter, usually in the blower compartment, in an attached filter case or in a wall-mounted return air grille. Remove the grille or open the panel door. You can usually do this with your hands alone, without tools. Once open, you should see the filter – a mesh screen that is installed either horizontally or vertically.

Remove the filter and inspect it for dirt by holding it up to sunlight or by shining a flashlight behind it. If you can’t see through it, it’s time for a new one. Install the new filter with the arrow pointing into to ducting, once replaced, slide it in and close the grille or panel door.

We whole heartedly recommend whole house air cleaners which are installed directly attached to the furnace or air handler; they include a 5” thick filter that generally needs annual replacement. These air cleaners can maintain system efficiency by keeping all of the systems moving parts clean and free of dust particles which can create wear.

Chick Here to learn more about the full line of Lennox® Indoor Air Quality and Filtration solutions that we offer. You can also Contact Us anytime with questions – or let us become your makeshift furnace owner’s manual. At Charlotte Comfort Systems, Inc. your Comfort is our Only Business!

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