Air Conditioning Repair July 22, 2024

Why Is There a Foul Odor Coming From My AC?

One of the worst things that can happen to an AC is a bad smell. Such obnoxious smells can prompt professional intervention. So, why would an air conditioner smell? Let’s look at the probable causes.

Why Does My AC Smell Bad?

Mold and Mildew Build-Up

If you are wondering why your air conditioner smells, it could be due to mold and mildew build-up. Typically, these fungi prefer warm, moist areas that are found inside the AC system or the ductwork. Water trapped in the system means that mold and mildew are likely to grow around the unit, particularly if the unit is old or the ducts have pinhole leaks. The emergence of unfavorable odors occurs from the growth of these organisms.

Clogged or Dirty Air Filters

Air filters in AC units are meant to trap dust, dirt, pollen, and other pollutants from the air to enhance indoor air quality. However, as a result of the clogging of the filter or the accumulation of dirt, moisture, and organic matter, you may notice bad smells circulating throughout the home. When your AC is in use, ensure you change or clean the air filters regularly to prevent this issue.

Stagnant Water in Drain Pan or Lines

Another reason your AC is musty smelling is because of standing water in the drain pan or lines. Thus, if such components get blocked, it affects the flow of water, and it stagnates. Water that does not flow can support bacterial growth, and bacteria usually cause a foul smell. This can be minimized through proper and regular cleaning of the drain pan and lines.

Read More: What To Expect When You Schedule AC Maintenance

Chemical Odors From Components

The last common reason for foul-smelling air conditioning is chemical odors from components. The next time you wonder what can cause a strange smell from your AC, schedule a professional inspection and maintenance. These smells can be very potent and pungent and can be compared to chemical products such as bleach or hydrocarbons. When you have such unpleasant odors coming from your AC, then the living conditions in your home can become quite unpleasant indeed.

If you are wondering why your air conditioner smells like pee, chemicals, or mold, the reasons mentioned can be major contributors. Contact us at Parrish Services and schedule professional AC maintenance in Manassas. We leverage extensive expertise and knowledge to ensure your HVAC in Manassas is in excellent condition.