When your air conditioner starts emitting weird or unappealing aromas, it is a good idea to take notice because it could be a sign of a significant problem. Disregarding unpleasant smells coming from your air conditioner could lead to additional damage to your AC or even pose a risk to your health and safety.

Depending on the smell, the root of the problem may be bacteria or fungus in the system. On the other hand, it could also sign something mechanically wrong with the air conditioner. Some smells are a warning of a harmful situation, like a natural gas leak.

At Brookwood Inc, we are skilled at diagnosing and fixing these type of problems. If you smell something odd coming from your cooling system, there’s a good chance our team of qualified specialists has smelled it, too—and fixed it! We’ve earned a reputation as the first call for air conditioning repair in Newton.

What does a particular smell coming coming from your AC mean? Here are some common air conditioner odors and what they might mean:

My Air Conditioner Smells Like Feet

If your air conditioner smells like feet, it may be caused by a buildup of bacteria or fungus in the unit. When moisture builds inside the unit, it can produce an environment that is beneficial to the development of bacteria and fungus. This can produce a foul odor that is often described as smelling like dirty feet.

Another potential reason for the smell may be a dirty air filter. When the air filter becomes filled with dirt, dust and other contaminants, it can lead to poor air quality and a musty smell that it similar to the smell of feet.

To correct this issue, it’s important to have a professional inspect and clean your air conditioning system, including the evaporator coil, drain pan and condensate drain line. It’s also important to replace the air filter routinely to provide good air quality and restrict the development of bacteria and fungus.

My Air Conditioner Smells Like Rotten Eggs

If your air conditioning equipment smells like rotten eggs, it may be caused by a natural gas leak in the unit or in the surrounding area. Natural gas has a recognizable odor, often described as smelling like rotten eggs or sulfur, that is added to it to make it easily detectable.

A natural gas leak is extremely dangerous and requires immediate attention. If you suspect a gas leak, turn off your air conditioning system, immediately open windows and doors to air out the area, evacuate the building and call your gas company or emergency services right away.

My Air Conditioner Smells Like Mildew

If your AC emits a smell like mildew, it could be due to a buildup of moisture inside the unit. When moisture accumulates inside the air conditioning system, it can foster the growth of mold and mildew. This can cause a musty smell that bears a resemblance to mildew.

Another possible explanation for the smell could be a dirty air filter. When the air filter becomes clogged, it can lead to poor air quality and a musty smell that has a resemblance to mildew.

Annual air conditioning maintenance from Brookwood Inc can help avoid both of these problems, because a good cleaning, inspection and filter change is a great way to keep your system running at its best!

Your AC Smells Like Urine

One of the most distressing things is when an air conditioner smells like urine.

If your air conditioning reeks of urine, it could be due to a variety of factors. One likely cause is a accumulation of bacteria or mold in the air conditioning system. This can happen if moisture accumulates in the system and creates a damp environment that is conducive to bacterial growth. The bacteria can emit a foul odor that some people describe as smelling like urine.

Another potential cause of the smell could be a plugged drain line. The condensation that forms inside the air conditioning unit needs to drain away correctly, but if the drain line becomes clogged with debris, it can cause water to back up and accumulate inside the unit. This can generate a musty smell that is sometimes described as smelling of urine.

My Air Conditioner Smells Like Burning Plastic

If your air conditioner smells like burning plastic, this could indicate an electrical concern with the unit. After some time, the electrical parts in the air conditioning system can wear out or break, which can create a burning smell that resembles plastic.

Another possible cause of the smell could be a foreign object that somehow got in the the air conditioner. If something foreign gets stuck in the air conditioning system, it can heat up and result in a smell that reminds people of burning plastic.

If you notice something that smells like burning plastic coming from your air conditioner, it’s important to contact a professional right away.

The Air Conditioning Smells Like Gas

If your air conditioner smells like gas, it could be because of a natural gas leak in the unit or in your home. Natural gas has a recognizable smell, often described as smelling like rotten eggs or sulfur. That’s because an odor is incorporated into natural gas to make sure that it is easily detectable.

As mentioned previously, a natural gas leak can be VERY hazardous and needs immediate attention. When you suspect a gas leak, turn off your air conditioning system, open windows and doors to air out the home, leave the building and call your gas company or emergency services straight away.

Your AC Smells Like Fish

When your AC smell like fish, you may have a situation where there’s a build-up of bacteria or mold in the unit. Moisture creates an environment that promotes the growth of bacteria and mold. This can cause a foul odor that is often described as smelling like fish or, as mentioned earlier, it also can create a smell like dirty feet.

Another plausible explanation for the smell could be a dead animal or other biological material caught within the air conditioning system. This often can happen if an animal such as a mouse or bird becomes trapped inside the unit and dies.

To fix the issue, it’s often necessary to have a professional check out and clean your HVAC system. They can determine the source of the smell and take the proper steps to remove any contaminants and prevent the problem from recurring.

Your AC Smells Like Vinegar

There could be numerous reasons a home’s air conditioning system smells like vinegar. One possible cause might be a dirty air filter. A second likely cause of the smell might be a refrigerant leak. Sometimes after the refrigerant leaks, it can make a chemical odor that is similar to vinegar.

To fix the issue, it’s beneficial to have a skilled specialist examine and clean your air conditioning.  If the odor persists after the cleaning and replacing of the air filter, it’s best to reach back out to a professional to diagnose and repair any hidden issues with your air conditioning. Or, the tech can tell you if your air conditioning ought to be replaced.

If you are wanting to upgrade, Brookwood Inc can help find the right unit to fit your home’s needs. We offer dependable, skilled air conditioner installation in Newton.

The Air Conditioning Smells Like Chemicals

If the smell of chemicals is emitting out of your air conditioning equipment, it could be the result of a refrigerant leak. If the refrigerant leaks, it can create a chemical odor that some people describe as smelling like chemicals or paint thinner, vinegar or acetone.

One other possible cause of the smell could be a problem with the electrical wiring or parts inside the air conditioning system. This can cause a burning smell that resembles chemicals or burning plastic.

If you think your system has a refrigerant leak or an electrical problem, it’s important to turn off your air conditioning system right away and contact a professional to inspect and repair the unit. Refrigerant leaks can be harmful and may require immediate attention to protect against injury or damage to your home.

A Nasty Odor Coming from the Air Conditioning? Call the Pros at Brookwood Inc

If your air conditioner reeks and you aren’t able to fix it simply on your own, reach out to the cooling specialists at Brookwood Inc. We have plenty of experience working with a wide variety of air conditioning systems. Our crew has fixed many air conditioning concerns throughout the years—including weird smells. Call us today for quality AC repair in Newton!