When your air conditioner starts spewing unusual or unappealing aromas, it is important to take notice because it could be a sign of a significant problem. Ignoring unpleasant smells coming from your air conditioning may lead to further damage to your AC or even pose a risk to your health and safety.

Depending on the smell, the cause could be bacteria or fungus in the system. Other times, it could also sign something mechanically wrong with the air conditioner. Some smells are even indicative of a dangerous problem, like a natural gas leak.

At E.B. Air, we are skilled at diagnosing and fixing these type of problems. If you smell something weird coming from your cooling system, chances are our team of talented pros has smelled it, too—and fixed it! We’ve earned our reputation as the go-to team for air conditioning repair in East Bernard.

What does a specific odor coming coming from your AC mean? Here are some common air conditioner smells and what they may mean:

My Air Conditioner Smells Like Feet

If your air conditioner smells like feet, it could 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 conducive to the growth of bacteria and fungus. This can produce a bad odor that is often described as smelling like stinky feet.

Another possible cause of an odor of stinky feet may be a dirty air filter. If an air filter becomes filled with dirt, dust and other particles, it can result in low air quality and a musty smell that it similar to the smell of feet.

To fix this unpleasant situation, it’s important to have an experienced specialist inspect and clean your air conditioning system, including the evaporator coil, drain pan and condensate drain line. It’s also important to change the air filter on a regular basis to provide good air quality and protect against the growth of bacteria and fungus.

The Air Conditioning Smells Like Rotten Eggs

If your air conditioning unit reeks of rotten eggs, it may be due to a natural gas leak in the unit or in the surrounding area. Natural gas has a unique 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 a situation that 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 allow gas to escape the area, get everyone out of the building and call your gas company or emergency services at once.

The Air Conditioning Smells Like Mildew

If your air conditioner smells like mildew, it may be due to a buildup of moisture inside the unit. When moisture accumulates inside the air conditioning system, it can promote the growth of mold and mildew. This can cause a musty odor that bears a resemblance to mildew.

Another possible reason for the smell could be a soiled air filter. When the air filter becomes clogged, it can result in poor air quality and a musty smell that has a resemblance to mildew.

Routine air conditioning maintenance from E.B. Air can help avoid both of these issues, because a good cleaning, inspection and filter change is a great way to keep your system working at its best!

Your AC Smells Like Urine

One of the most unpleasant things is when the air coming out of your HVAC system smells like urine.

If your air conditioner reeks of urine, it could could be caused by multiple factors. One potential cause is a collection of bacteria or mold in the your HVAC. This can happen in the event that moisture accumulates in the system and creates a damp environment that is conducive to bacterial growth. The bacteria can emit a foul odor that resembles urine.

Another potential cause of the stink could be a blocked drain line. The condensation that forms inside the air conditioning unit needs to drain away effectively, but if the drain line becomes clogged with debris, it can cause water to back up and collect inside the unit. This can generate a musty smell that can stink like urine.

The Air Conditioning Smells Like Burning Plastic

If your air conditioning system smells like burning plastic, a possible cause could be an electrical concern with the unit. Over time, the electrical components in the air conditioning system can wear out or malfunction, which can produce a burning smell that resembles plastic.

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

If you think you smell burning plastic coming from your cooling system, it’s worthwhile to call a professional right away.

Your AC Smells Like Gas

If your air conditioning smells like gas, there could be a natural gas leak in the unit or in your home. Natural gas has a distinctive aroma, often described as smelling of rotten eggs or sulfur. That’s because this scent is put into natural gas to make it easily detectable.

As stated before, a natural gas leak can be VERY dangerous and calls for immediate attention. If you suspect a gas leak, turn off your air conditioning system, open windows and doors to air out the home, evacuate the building and contact your gas company or emergency services right away.

My Air Conditioner Smells Like Fish

Should your air conditioning equipment 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 fosters the growth of bacteria and mold. This can cause a strong odor that can be described as smelling like fish or, as mentioned earlier, it also can result in a smell like dirty feet.

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

To solve the issue, it’s often necessary to have a professional check out and clean your cooling system. They will be able to find the source of the smell and take the proper steps to remove any contaminants and prevent the problem from recurring.

My Air Conditioner Smells Like Vinegar

There could be several reasons a home’s air conditioner smells like vinegar. One possible cause of the smell could be a dirty air filter. Another likely cause of the smell may be a refrigerant leak. If the refrigerant leaks, it can create a chemical odor that is similar to vinegar.

To fix the issue, it’s important to have a skilled specialist look at and clean your air conditioning.  If the odor continues after the cleaning and exchanging the air filter, it’s best to reach back out to a professional to find and repair any hidden issues with your air conditioning. Or, the tech can tell you if your air conditioning should be replaced.

If you are planning to upgrade, E.B. Air can help find the right unit to fit your home’s needs. We provide dependable, skilled air conditioner installation in East Bernard.

My Air Conditioner Smells Like Chemicals

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

One other possible source of the smell could be a problem with the electrical wiring or components inside the air conditioning system. This can produce a burning smell that is like 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 dangerous and may require immediate attention to protect against injury or damage to your home.

A Nasty Odor Coming from the Air Conditioning? Contact the Experts at E.B. Air

If your air conditioner smells nasty and you aren’t able to fix it smoothly on your own, reach out to the cooling specialists at E.B. Air. We have plenty of experience working with a wide variety of AC systems. Our crew has fixed countless air conditioning concerns over the years—including weird smells. Call us today for quality AC repair in East Bernard!