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How To Replace Carrier AC Filter?

Replacing the air filter on your Carrier AC unit is a simple and important maintenance task that you can do yourself without the need for a professional. A clean filter can help your AC unit operate more efficiently, improve indoor air quality, and prolong the lifespan of your system. In this guide, we will walk you through the steps on how to replace carrier ac filter. PartsFPS is the largest distributor of food service parts for restaurant supply stores.  We provide top-quality items at a lower price for your industry.

How To Replace Carrier AC Filter?

What is an AC filter? An AC filter, also known as an air filter, is a component of an air conditioning system that is designed to remove dust, dirt, pollen, and other airborne particles from the air as it circulates through the system. The AC filter aims to improve the air quality in a building by trapping these particles and preventing them from recirculating throughout the space. A clean and properly functioning AC filter can also help to improve the efficiency of an air conditioning system by preventing the buildup of debris on the system's components and reducing strain on the system's motor. AC filters are available in a variety of sizes, types, and materials, and their effectiveness can vary depending on their design and rating. It may occasionally cause problems, requiring you to change the filters. In this guide, we will walk you through the steps on how to replace the carrier ac filter. Please follow the below steps.

Turn Off Your AC Unit

Before you start replacing the air filter, turn off your Carrier AC unit at the thermostat or circuit breaker. This will prevent the system from turning on while you are working on it and keep you safe from any electrical hazards.

Locate the Air Filter

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The location of the air filter on your Carrier AC unit can vary depending on the model and type of system you have. However, most filters are located either at the bottom of the unit, behind the front panel, or in the return air grille. Refer to your owner's manual or check the manufacturer's website for specific instructions on where to find the air filter.

Remove the Old Air Filter

Once you have located the air filter, remove the front panel or the return air grille to access the filter. Carefully remove the old air filter from its housing and dispose of it properly. It's important to note that some air filters can be reused after being cleaned, while others are disposable and must be replaced with a new filter.

Choose the Right Replacement Filter

When choosing a replacement air filter, it's important to choose the right size and type of filter for your Carrier AC unit. You can find this information in your owner's manual or by checking the label on the old filter. Carrier AC units typically use either fiberglass or pleated air filters. Pleated filters are more effective at capturing smaller particles, such as pollen and pet dander, but they also tend to have a higher cost. Fiberglass filters are more affordable but need to be replaced more frequently.

Install the New Air Filter

Once you have the right replacement filter, install it in the same direction as the old filter. Most air filters have arrows indicating the airflow direction, so make sure to align the arrows with the direction of the airflow. Secure the filter in its housing by closing the front panel or returning the air grille.

Turn On Your AC Unit

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After installing the new air filter, turn your Carrier AC unit back on at the thermostat or circuit breaker. Give the system a few minutes to start circulating air through the new filter. You should notice an improvement in the indoor air quality and the efficiency of your AC unit.

Check and Replace the Air Filter Regularly

It's recommended to check and replace your Carrier AC air filter every 30 to 90 days, depending on the type of filter you have and how often you use your AC unit. A dirty air filter can cause your system to work harder, increase your energy bills, and potentially lead to system breakdowns. Regularly replacing your air filter can help keep your Carrier AC unit running smoothly and efficiently.


Replacing the air filter on your Carrier AC unit is a simple and important maintenance task that can improve your indoor air quality, system efficiency, and overall lifespan. By following the steps outlined in this guide, you can replace your air filter quickly and safely. Remember to choose the right replacement filter, install it correctly, and check and replace it regularly to ensure your Carrier AC unit continues to perform at its best.

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