How to Find and Replace Filters on Your Central Air Unit

Having a central air conditioning unit in your home is a great way to keep your home cool and comfortable during the hot summer months. But, in order to keep your air conditioning unit running efficiently, it's important to regularly check and replace the filters. Filters help clean the air that flows through your home by reducing pollen, bacteria, dust, and pet dander. They also protect the air conditioner coils and engine from contaminants.

Most central air conditioning units have two or more filters. These filters are usually located close to your home thermostat or next to the air controller in your air conditioning system. The filter is typically made of spun fibreglass or pleated paper or cloth, enclosed in a rectangular cardboard frame. If you have a large system with multiple air controllers and return ducts, finding the filters can be a challenge.

To locate the filter, follow the air; find the air that returns, or returns, because depending on your home there could be more than one; follow the ducts to the air controller. A clogged filter can prevent enough air from flowing through the system to keep it working properly. This means that the heating, ventilation and air conditioning (HVAC) system must work harder to move air through the filter, and not all systems are equipped to do so. Replacing the filter in your home will allow the unit to continue to blow cold air without interruption.

If you live in an area with a lot of fine sand or dust, such as in desert climates, you may need to add Honeywell FPR 10 filters to the roof return air ducts inside your house. In conclusion, it's important to regularly check and replace your central air conditioning filters in order to keep your unit running efficiently and maintain good indoor air quality. Follow the return ducts to locate the filter and replace it when necessary.