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Negative Effects Humidity Can Have on Your AC Unit

High humidity can have negative effects on your AC unit. Humidity generally refers to the amount of water vapor in the air. When it is too high, it can make the atmosphere feel oppressive. When it is hot and humid, we often feel worse because it becomes more difficult to feel cooler as sweat does not evaporate as easily as when the air is drier. Normal humidity levels indoors will range somewhere between 30-50%. When it is too high, you will typically see evidence of condensation on the glass of windows and mirrors. You can also use a hygrometer to check humidity levels more accurately.

Modern AC units are installed with thermostats that allow the homeowner to regulate the temperature in the home. However, they may not control or measure humidity levels unless specifically equipped with a dehumidifier. Though running an AC may reduce humidity to some extent, it is best to try and limit the amount of moisture in the home when using an AC, as continued exposure to high levels of humidity in the air can negatively affect the machine and the health of occupants.

What Can Cause A Furnace To Stop Working?

Uneven Cooling

When you have an AC running when humidity is high, it often cannot run effectively. It may not be able to cool rooms optimally, forcing the machine to work harder. The AC can strain to try and achieve and maintain the required temperature set on the thermostat, resulting in uneven cooling of rooms. High humidity makes the air warmer and heavier, causing the AC to work harder to make the air cooler and circulate better.

Increased Wear and Tear on the AC System

When high humidity conditions persist, your AC unit will be pushed to work harder for much longer. This stress will affect its life span. It will become worn much faster and subject to more frequent breakdowns. Repair calls will be more frequent, which can translate into unwanted expenses.

Need for Replacement

Repairs are not the only impact when you have recurrent breakdowns of your AC unit. As your unit works harder to try and achieve and maintain the desired temperature in the home, it shortens the life span of the machine. The homeowner will likely be forced to buy a replacement unit sooner than someone else using the same model in a less humid climate. Upgrading or replacing this unit can be very costly.

Increased Costs

As the AC works harder to maintain the desired temperature, it will use more energy, resulting in higher utility costs. Overall, the homeowner can expect that when humidity is high, they will have to pay more for repairs, utilities, and replacement when the unit becomes financially unfeasible to keep repairing.

Increased Risk of Mold

When you have high humidity levels in the home, it creates a conducive environment for mold to grow and spread. This typically happens when humidity rises above 50%. Running your AC under such conditions can worsen the situation as the circulating air can help to carry mold spores throughout the home. It can create new areas where the mold can take hold and grow, including some parts of HVAC systems. It can also harm air quality. Seniors, babies, and immunocompromised who breathe in such contaminated air can easily develop respiratory problems. It is vital to ensure that if you are having humidity problems in the home, they are addressed as quickly as possible.

How to Fix Humidity Problems

Investing in a dehumidifier is a good idea. You can install a whole system into your existing HVAC system or opt for standalone devices for each room. Dehumidifiers will help remove moisture from the air and allow your AC unit to run more effectively and efficiently.

Ensuring that maintenance is regularly done on your HVAC system will also help. A technician will be able to determine if humidity could be causing your AC to run poorly and advise you on how to address the problem. When you have regular maintenance performed on your unit, the cleaning of the system will also help reduce any dirt and moisture conditions that can promote mold growth.

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Customer Reviews

Claudia M.

Scott, along with his associate, Gabe, did a great job. They were both professional and friendly. Scott explained in enough detail to help me understand how my a/c unit works-he’s very informative. Have was a great help, cutting the time it took to clean and install the HVAC equipment. I liked that they were both pet friendly, that’s also important for me. I’ve been a customer of absolute Airflow for a couple of years and they are a great company …

Ty S.

Have had nothing but amazing experiences with Absolute Airflow from the beginning. We have had a few issues here and there but Absolute has always sent someone out quickly and stood behind their work. Most recently they sent out Spencer and he was the best technician we’ve ever had! He was extremely respectful and polite, he also took the time to thoroughly talk me through and help me understand the genesis of our various issues we were encountering. Definitely hope …

Ian S.

My requested service was set up by Marcus who came to my home to evaluate and was prepared with options and great prices for my water heater replacement. Was able to get an appointment within 3 days as there was no emergency. My install tech James was amazing, He was very respectful and maintained a clean and organized work area as the installation was in the home. The removal, prep, and installation of new water, gas, and venting took approximately …

Richard S.

I can’t express enough how impressed I am with this company and especially Anthony Belt. Anthony was so thorough and patient with my wife and me. The impressive part was he was able not only to identify all the problems with my heating and ac but went above and beyond to fix all of them! My electrical bills were over $500 a month during the ac months and now they are less than $200! Not only am I saving a …

Patrick K.

I haven’t posted any reviews in a long while but here I am thanks to SCOTT with Absolute Airflow. The warmer Cali weather is around the corner and as a responsible homeowner, I decided to get my HVAC system checked out and tuned up before the summer heat. Scott provided us with the full red carpet experience. His knowledge, quality and care put into his work, and professionalism were all outstanding. Replaced fan motor due to oil leak (a normal …

Liem H.

Outstanding experience from the start. I’ve been a member of Absolute Airflow for almost 2 years now. Since then, I’ve had my system maintained twice a year. Every service has been very thorough and professional. Each time, everything was explained to me in terms that I would understand, coupled with plenty of photo documentation. Which I appreciate so much. Knowing that I would have to replace my aging system. I dreaded the coming expense and experience. But my fears were …