July 1, 2025

Is Your AC Spreading Mold? Here’s How to Tell!

Your air conditioning is a blessing in the sweltering heat of summer, offering you an escape into a cooler climate when spending time outdoors. But is your AC spreading mold? If you suspect that your unit has mold in it, not only can it affect the system, but it can also lead to health complications if not addressed and corrected quickly.

At Tindall & Ranson, we’re here to help you determine if your AC is spreading mold and what you should do if it is.

How Mold Forms in Your AC Unit

Mold tends to thrive in environments that are damp, dark, and warm. Your air conditioning unit tends to create all three—making it a perfect place for mold to grow. Your air conditioner creates condensation that spreads through its ducts, and with the addition of dust, can potentially harbor mold if not cleaned and regularly maintained.

How to Tell If Your AC is Spreading Mold

There are plenty of ways that you can tell if there’s mold in your AC unit, so it’s important to take notice of the signs so you can plan to have the issue corrected. Here’s what to look out for:

You Smell Mold

If you notice the smell of mold when your AC unit turns on, it could mean that you have mold growing inside the ducts or evaporator cooler, which can release mold spores through your vents.

Uptick in Allergies

If you or your family are starting to experience the symptoms of allergies (coughing, sneezing, watery eyes), specifically while indoors, it could be an indication of mold growth and spores spreading through your home.

Water Leaks & Excess Moisture

Be mindful of any leaks coming from your AC unit. It could be an issue with the system itself, or a sign of excess moisture which can exacerbate the growth of mold.

The Sight of Mold

While mold can be detected with most of your senses, seeing it is a strong red flag that you shouldn’t ignore. Look around your AC unit and your vents to see if you can see mold starting to sprout.

Issues with Airflow & Cooling

When you have mold growing in your ducts, it can hinder the effectiveness of your AC unit. Not only can it restrict the airflow, but it can lead to uneven cooling of your home.

What to Do if Your AC is Spreading Mold

If mold is growing in your AC unit, it’s important to stop it from spreading before it leads to further damage and even health issues with your family. It’s important to contact a heating and cooling expert to identify the issue and clean the ducts and replace any components if necessary.

Preventative measures like regular maintenance and cleaning and even employing a dehumidifier can help you avoid the risk of mold growth.

Contact Tindall & Ranson if Your AC is Spreading Mold

If you noticed any of the signs that your air conditioning unit is growing and spreading mold, it’s important to alleviate the issue as soon as possible. Get in touch with us at Tindall & Ranson so our expert technicians can effectively remove the mold so your cool air can flow freely.

Contact us today!