How to Replace Your HVAC Filter in 3 Easy Steps
One of the most important components of your HVAC system is not a fancy, highly technological piece of equipment. In fact, it is something you can – and should – maintain yourself in order to keep your furnace and air conditioner working properly. It is the air filter and you can replace it quickly and easily with these 3 steps. Doing so regularly will keep your Denver home warm in the winter and cool in the summer.
As we’ve gotten better at sealing our homes against outside elements, indoor air quality has become a greater concern. In addition to maintaining a comfortable temperature, your HVAC system also keeps the air in your home clean. Your central forced air heating and cooling system relies on the air filter to catch dust, dirt and allergens and prevent them from circulating in your home. They do, however, need to be replaced. Dirty filters are the number one reason most HVAC systems begin to operate inefficiently.
1. Remove your current air filter.
In some systems, the air filter is located in the furnace or air conditioner unit’s air-handler cabinet. Air filters may also be located in the return air registers in your home. Often, they are in both places. Turn off the heating or cooling system before removing the old filters.
2. Identify your filter type & buy a replacement filter.
The filter size is usually marked on the side of the frame. If you can’t find it, simply measure the frame and make a note of the size. While you’re at it, why not buy several to have on hand?
3. Install the filter.
To replace the filter in the register, unlatch the cover grille. Remove the old filter. It will be dirty and dusty, so be prepared to take it directly to the outdoor trash. Clean the grille and the surfaces inside and outside the register with a damp rag. Install the new filter with the airflow arrows pointing toward the ductwork. Replace the cover grille and secure it.
To replace the filter in the furnace or air conditioner, find the access to the blower. (It may be marked “Filter.”) Remove the panel and set any screws aside in a secure spot. Slide the filter out along the tracks and carefully dispose of it in your outdoor trash. Insert the new filter with the arrows pointing toward the blower (away from the ductwork). Replace the panel.
Note that some furnaces have filters that can be cleaned instead of replaced. Instructions for cleaning will be marked on the filter edge.