When your air conditioner starts spewing weird or gross odors, it is necessary to take notice because it could be a sign of a major problem. Disregarding unpleasant smells coming from your air conditioning may lead to additional damage to your HVAC system or even pose a risk to your health and safety.

Depending on what you’re smelling, the cause might be bacteria or fungus in the system. On the other hand, it could also sign something mechanically wrong with the AC. Some smells are a warning of a harmful problem, such as a natural gas leak.

At ACE Solutions, we have a nose for these sorts of things. If you smell something peculiar coming from your cooling system, you can bet that our team of skilled professionals has smelled it, too—and fixed it! We’ve earned our reputation as the premier company for air conditioning repair in Hasbrouck Heights.

What does a specific odor wafting coming from your air conditioning mean? Here are some typical air conditioner smells and what they could mean:

The Air Conditioning 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 accumulates inside the unit, it can establish an environment that is beneficial to the growth of bacteria and fungus. This can result in a bad odor that is often described as smelling like feet.

Another potential explanation for the stench of dirty feet might be a dirty air filter. If an air filter becomes clogged with dirt, dust and other debris, it can lead to poor air quality and a musty smell that bears a resemblance to feet.

To correct this dilemma, 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 exchange the air filter regularly to ensure good air quality and prevent the formation of bacteria and fungus.

The Air Conditioning Smells Like Rotten Eggs

If your stinks like rotten eggs, it might be the result of 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, which is added to it to make it easily detectable.

A natural gas leak is extraordinarily 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, evacuate the building and call your gas company or emergency services right away.

Your AC Smells Like Mildew

If your AC emits a smell like mildew, it may be due to a collection of moisture inside the unit. When moisture collects inside a cooling system, it can cultivate the growth of mold and mildew. This can cause a musty smell that resembles mildew.

Another possible cause of the smell may be a soiled air filter. When the air filter becomes clogged, it can cause poor air quality and a musty smell that has a resemblance to mildew.

Regular air conditioning maintenance from ACE Solutions can help prevent both of these problems, because a good cleaning, inspection and filter change is a very good way to keep your system running at its best!

The Air Conditioning Smells Like Urine

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

If your air conditioning reeks of urine, it could be traced back to a number of things. One likely cause is a collection of bacteria or mold in the air conditioning system. This can happen in the event that moisture accumulates in the system and creates a moist environment that favorable for bacterial growth. The bacteria can create a foul odor that resembles urine.

Another possible cause of the stink could be a plugged 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 build up inside the unit. This can create a musty smell that can stink like urine.

My Air Conditioner Smells Like Burning Plastic

If your air conditioning system smells like burning plastic, this could indicate an electrical issue with the unit. After some time, the electrical elements in the air conditioning system can wear out or break, which can produce 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 caught in the air conditioning system, it can become hot and cause a smell similar to burning plastic.

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

My Air Conditioner Smells Like Gas

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

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

Your AC Smells Like Fish

Should your air conditioner smell like fish, it could be due to a build-up of bacteria or mold in the unit. Moisture causes an environment that promotes the growth of bacteria and mold. This can cause a disgusting odor that is sometimes 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 stuck inside the air conditioning system. This often is possible if an animal such as a mouse or bird becomes trapped inside the unit and dies.

To solve the issue, it’s worthwhile to have a professional examine and clean your HVAC system. They will be able to determine the source of the smell and take the correct steps to remove any contaminants and prevent the problem from recurring.

The Air Conditioning Smells Like Vinegar

There could be numerous reasons an air conditioning system smells like vinegar. One possible cause might be a dirty air filter. A second likely cause of the smell could be a refrigerant leak. When the refrigerant leaks, it can create a chemical odor that is described as smelling of vinegar.

To fix the issue, it’s beneficial to have a skilled mechanic look at 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 find 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 looking to upgrade, ACE Solutions can help locate the correct unit to fit your home’s needs. We offer dependable, expert air conditioner installation in Hasbrouck Heights.

My Air Conditioner Smells Like Chemicals

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

An additional possible reason for the smell could be problems 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 suspect a refrigerant leak or an electrical problem, it’s important to turn off your air conditioning system as soon as possible and contact a professional to inspect and repair the unit. Refrigerant leaks can be hazardous and may require immediate attention to protect against injury or damage to your house.

Weird Smells Coming from Your AC? Contact the Experts at ACE Solutions

If your air conditioner reeks and you aren’t able to fix it quickly on your own, call the cooling specialists at ACE Solutions. We have years of experience working with a wide variety of air conditioning systems. Our crew has fixed countless air conditioning concerns over the years—including strange smells. Call us today for quality AC repair in Hasbrouck Heights!