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Mack Morris Heating & Air Conditioning Blog

Why Is My AC Blowing Warm Air?

question-markThere are a number of problems with your air conditioning system that could understandably slip under your radar. Many are not immediately obvious, and their symptoms may be quite hard to detect at first. When it comes to an AC that is blowing warm air, however, the problem is fairly obvious. Or, rather, that particular symptom is obvious. For, you see, there are actually a number of potential causes of this problem. That tends to be the case with AC issues, which is why a professional diagnosis is so important.

If you notice that your air conditioning in Charlottesville, VA is quite lackluster, do not hesitate to reach out to a member of our team. The longer that you hold off on doing so, the more likely it becomes that your air conditioner will suffer damages due to your inaction. Plus, even if the system is up and running, there is no way that you’re going to be getting the level of comfort that you deserve if the air that it is pumping out is too warm!

Is the Problem Localized?

If the warm(ish) air coming from your air conditioner’s vents is restricted to just one room or area, then duct leaks are a very likely culprit. Well, how do I know for sure? you may be wondering. It’s not as if I can see my air ducts, or at least not most of them. That’s true, which is why you may need to schedule professional duct testing with a contractor offering this service.

Sealing your air ducts helps to prevent hot air from unconditioned areas that the ducts pass through from entering the ductwork system. It also helps to protect your indoor air quality. You cannot seal your ducts on your own, though. Duct sealing is a job for qualified professionals only.

Have You Changed the Filter Recently?

Remember that changing your air filter is the single best maintenance step for your AC that you can handle on your own. Replacement filters are cheap, and they are easy to install. But how could a dirty filter result in warm air coming from your system, you may wonder?

Well, for starters, it restricts airflow! That’s not the same thing as warm air coming from the vents, of course. It can lead to that issue, though, by causing the evaporator coil to ice up. When airflow is restricted, the coil can get too cold. Then, condensation collected on that coil can ice over. This creates an insulating barrier, inhibiting the heat transfer process even more.

And Now, the Bad News

It could be a refrigerant leak. It is the evaporation of the refrigerant in the evaporator coil that allows your air conditioning system to remove heat from the air passing over that coil at all. If there is not enough refrigerant in the system, then it won’t be able to remove heat successfully.

This can also result in the freezing over the evaporator coil. Again, as mentioned above, this only limits the heat transfer process further. Eventually, a refrigerant leak can truly destroy your system, so be sure to schedule service with us if you suspect one in your system.

We can’t control the weather outside of your home, but we can control the weather inside your home. Schedule your AC services with Mack Morris Heating & Air Conditioning. 

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