HVAC experts recommend that the air filter in your AC unit should be changed once a month during the summer months for several reasons. First, it helps to ensure you are removing the dirt and other irritants that are circulating through your vents. Second, it helps to keep your air conditioning system operating at its best (AC Units use more fuel when the air filter is dirty). Finally, it can actually extend the life of your air conditioning system.

Steps for Changing Your Air Filters

The good news is that changing the air filter in your AC unit is actually quite simple. Following are the basic steps (you will need a measuring tape, a new or clean reusable filter, and the manual for your AC system).

The first thing you need to do is refer to your manual to find out what kind of filter you will need. Some filters are reusable and can be easily washed or rinsed in the bath tub or with a hose. Others (such as fiberglass) will need to be replaced with a brand new filter.

If the manual doesn’t specify the size of the filter that you need to buy (or if you’ve lost the manual), use the tape measure to record the length, width, and height of the AC unit. These numbers will assist the hardware sales associate in selecting the appropriate new filter for your AC system.

air filter replacementOnce you have the new or clean filter, make sure the AC unit is turned off, then open the compartment where the filter is located. Most units have tabs where the door comes off. Pull gently on the door and it should come off (while you have the door off, it’s a good idea to rinse away any dirt).

At this point, the old filter should be visible. Remove and dispose of it, then put the new air filter in the slot where the old filter was, being sure to place it correctly. There are arrows that show how the filter should be installed. If the arrows are pointing at you, the filter is installed the wrong way. If you are using a permanent filter, wash and rinse the filter (but make sure it is completely dry before you put it back in).

Once the compartment door is shut and secure, you are able to restore power and restart your AC unit.

If you have any questions or need assistance changing the air filter in your AC unit, contact B.M.C/Clower at 866-904-9946.