Air Conditioner Filters Replacement: How to Change AC Filters

Air conditioner filter replacement is a simple task that improves your indoor air quality, increases your HVAC system’s efficiency, reduces your energy bills, and extends the life of your equipment. Like flossing your teeth, changing out your AC filter is a minor preventative measure that can save you from costly repairs.

Why Changing AC Filters is Important

Your AC filters do a critical job. As air circulates throughout your home, the filters snag dust, pet fur, pollens, allergens, mold spores, bacteria, and more, so you don’t breathe it in. Over time, without regular air conditioner filter replacement, they become clogged with gunk and grime. At that point, the filtration breaks down and more particulates remain in the air to get inhaled into your lungs.

Not only are dirty AC filters a problem for your breathing, but they are hard on your HVAC equipment. Clogged air filters impede the airflow, causing your equipment to work harder than it should. This extra work is hard on your system and your energy bills! Avoid costly AC repairs and make regular filter changes a part of your AC maintenance plan for your home. Learning how to change the AC filters and doing it regularly is an easy investment that pays rich dividends for your clean air, your wallet, and your HVAC equipment.

Tools and Materials for Air Conditioner Filters Replacement

Changing the AC filter requires just a few simple tools:

Screwdriver: To remove any screws securing the filter access panel
Vacuum Cleaner: To clean the area around the filter slot, removing dust and debris
Flashlight: To illuminate the equipment
Gloves: To protect your hands from dirt and sharp edges
Dust Mask: To prevent inhaling dust and allergens

Step-by-Step Guide on How to Change AC Filters

Before changing the AC filter, you must learn what kind and size of filter your system uses. Then, get that exact kind for the replacement.

Here’s how to change the AC filter:

Step 1: Turn the System Off: For safety, turn off the HVAC.

Step 2: Access the Filter: Use the screwdriver to remove the access panel.

Step 3: Remove the Old Filter: Discard it in a trash bag.

Step 4: Clean the Area: Vacuum the dust and cobwebs around the filter housing.

Step 5: Insert the New Filter: Orient the new filter properly according to the airflow markers.

Step 6: Close the Access Panel: Secure the panel with the screws.

Step 7: Turn on the System: Verify that the system is working properly.

When and How Often to Change Air Conditioner Filters

Chances are, your HVAC system uses pleated air filters, which should be replaced every one to three months, depending upon usage and your home conditions. For some homes, it’s worth considering monthly air conditioner filter replacements.

High Usage: Your system runs frequently.
Allergies or Respiratory Issues: A family member has trouble breathing.
Pets: Pet hair and dander can quickly clog filters.
High Dust Areas: Homes in dusty locations or with construction sites nearby.

Learn about the best AC filters for people with allergies or pets.

Best Practices for Maintaining Air Conditioner Filters

Maintaining air conditioner filters is not only essential for optimal HVAC performance and good indoor air quality, but following best maintenance practices will help keep your air conditioning system running efficiently and extend its lifespan.

Monthly Inspections: Inspect monthly, and replace when dirty — every 1 to 3 months
Use the Same Filter: Always use the filter type, MERV rating, and size recommended by your HVAC manufacturer.
Keep the Surrounding Area Clean: Clean the surrounding area when replacing the filter.
Set Reminders: Mark your calendar or set reminders in an app for checking and replacing the AC filter.
Monitor Indoor Air Quality: Excess dust or poor air quality are signals to change the filters.

When to Call a Professional for Air Conditioner Filter Replacement

Typically, homeowners can handle air conditioner filter replacement on their own, but there are circumstances when it is best left to the pros:

Difficulty Accessing the Filter: If the filter is located in a hard-to-reach place
Recurring Issues: If problems like poor air quality or the AC blowing hot air continue
Lack of Confidence: If you need help understanding your AC components
Complex Systems: Some HVAC systems are more complex than others

Aire Serv^® is your go-to for all HVAC services, from changing the AC filter to installing new systems.

There’s no need to wonder whether you’ll be satisfied with our service — we know you will! The Neighborly Done Right Promise^™ backs everything we do. We do the job right the first time.

Request an appointment today and breathe easy with Aire Serv!

This article is intended for general guidance only and may not be applicable to every situation. You are responsible for determining the proper course of action for your property and your situation. Aire Serv is not responsible for any damages that occur as a result of any advice or guidance derived from blog content. For the most accurate guidance, contact an independently owned and operated Aire Serv for more information and a professional on-site assessment.