How to Avoid Mould and Mildew Growth in Air Conditioner?

Air conditioners are nothing short of a blessing when you need to feel comfortable while the temperature outside is burning hot. Air conditioners do not just keep it cool during the summers. They keep the room at a bearable temperature when the weather outside is freezing. Air conditioners also help in wicking out excessive moisture from the room.

However, like any other equipment, air conditioning systems too require regular maintenance and cleaning services. This helps them perform at their best without any unfortunate breakdown sessions. If you recently bought yourself an air conditioning system, it is better to get it installed from technicians for air conditioning service in Dallas, TX.

Mold/Mildew in Air Conditioning System

If you ever walk outside on a rainy day by the woods, you will notice moulds forming over the woods. This is because molds/mildew thrives in the presence of moisture. Your air conditioning system is in charge of nicking away the moisture from the air. This leads to moisture deposits inside the system. A good amount of moisture settling inside the system and it is a sure-fire invitation to the molds. You need to be particularly aware of the black mould. If you notice such growth anywhere near or over your air conditioning system, it is time to call in help immediately from air conditioning service in Dallas, TX.

What is black mold?

Mould is a form of fungus. It can be found in places with high moisture. The range of colors like brown, green, and black you see is actually the phases of growth for mold. The molds are comprised of tiny cells termed hyphae that look similar to threads. These molds/mildew can grow anywhere where there is proper source of water along with organic material like leather, drywall, or paper that serves as their food source.

If these molds take over your air conditioning system, they can blow into your room from the vents & travel to various corners of the house. This can especially affect you if anyone in the room has asthma or any breathing issue.

Here are some tips to help you prevent the growth of mold/mildew inside your air conditioning system.

1- Maintain/Clean Your Drain Pans:

If the air conditioning drain pans do not drain out properly, it can serve as an ideal location for mold to grow. In such cases, you can either seek help from air conditioning service in Dallas, TX or start the cleaning process by yourself. Check whether the drain pans are positioned in a titled way. This ensures that all the excess moisture is drained out and doesn’t settle in the pan itself. Inspect the pans on a regular basis and assure that there is no such build-up of debris or water. Even if you notice certain amount of build-up, your first move is to clean them with high-pressure water spray and keep them outside under the sun. This allows the pans to dry up completely which avoids mold growth.

2- Replace the AC filters:

Dirty, old filters do not trap in the particles in an efficient manner. This obviously means that the mold particles get a chance to spread all through the house and build their colonies in different corners of the house. Not just that, it can worsen your allergies or lead to asthma attacks if you happen to be patient. Mould entering your body via your lungs can at times lead to fatal issues if you are heavily allergic to the components they are made up of.

In order to avoid such instances, it is recommended that you get your air conditioning system checked from experts for air conditioning service in Dallas, TX. You need to replace the filters once, every month. Also, keep in mind that you should use the right type of filter designed to fit perfectly on the air conditioner. The filter needs to sit just right with no presence of any kind of gap.

3- Clean & Dry Duct:

Dirty or wet ducts in the air conditioning system serve as an ideal ground for the mold to expand its colony. In order to prevent such fungal growth, you need to ensure that the ducts are checked regularly for any moisture development. If you happen to notice water collecting inside the ducts, it’s time that you take charge and dry them out to prevent any mold or water-based damage to the equipment and parts.

4- Check Air Intakes:

Air intakes, when present by any organic compound source can aid the growth of mold/mildew inside the air conditioning system. Look for presence of organic compounds such as standing water, disturbed earth, bird droppings, dirt, or rubbish inside the bins. Remove and clean these contamination sources and keep your air conditioner free from unwanted mold growth.


A sure-fire sign of confirming the presence of mold in your air conditioning system is the prevalence of musty-earthy smell inside the house. This smell gets stronger as you get closer to your AC vents. If you notice such smell, it is required that you immediately call for help from a reputable air conditioning service in Dallas, TX.

Mold/Mildew growth ailing your air conditioning system? It’s time for our experts to step in. At Enertia HVAC/R, we ensure that your air conditioner is spick and span at all times with steps for preventative maintenance acquired through years of experience in HVAC system repair, maintenance, and installation services. Hire our expertise for any kind of HVAC requirement. Mail us at You can also call us at (214) 550-3458 and order an on-site inspection.

Related posts