When your air conditioner starts emitting unusual or funky odors, it is a good idea to take notice because it could be a sign of a big problem. Ignoring unpleasant smells coming from your air conditioning could lead to additional damage to your HVAC system or even pose a risk to your health and safety.

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

At Titan Heating & Air Conditioning, we are skilled at diagnosing and fixing these type of problems. If you smell something peculiar coming from your AC, chances are our team of talented pros has smelled it, too—and fixed it! We’ve earned our reputation as the premier company for air conditioning repair in Central Point.

What does a specific odor billowing coming from your cooling system mean? Here are some typical air conditioner aromas and what they could mean:

Your AC Smells Like Feet

If your air conditioner smells like feet, it could be due to a buildup of bacteria or fungus in the system. When moisture collects inside the unit, it can establish an environment that is conducive to the development of bacteria and fungus. This can result in a bad odor that is often described as smelling like stinky feet.

Another possible explanation for the stench of dirty feet might be a dirty air filter. When the air filter becomes filled with dirt, dust and other particles, it can result in substandard air quality and a musty smell that it similar to the smell of feet.

To fix this unpleasant situation, it’s important to have a quality service tech 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 promote good air quality and prevent the growth of bacteria and fungus.

Your AC Smells Like Rotten Eggs

If your air conditioning unit reeks of rotten eggs, it might be the result of a natural gas leak in the unit or in the surrounding area. Natural gas has a distinctive odor, often described as smelling like rotten eggs or sulfur, which is because of a substance added to it to make it easily detectable.

A natural gas leak can be 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, make everyone leave the building and call your gas company or emergency services right away.

The Air Conditioning Smells Like Mildew

If your air conditioner smells like mildew, it might be due to a collection of moisture inside the unit. When moisture accumulates inside the air conditioning system, it can cultivate the growth of mold and mildew. This can cause a musty smell that it similar to mildew.

Another possible cause of the smell may be a dirty air filter. Once the air filter becomes clogged, it can lead to poor air quality and a musty smell that is similar to mildew.

Routine air conditioning maintenance from Titan Heating & Air Conditioning can help protect against both of these problems, because a good cleaning, inspection and filter change is a very good way to keep your system operating at its best!

The Air Conditioning Smells Like Urine

One of the most unpleasant scenarios is when an air conditioner smells like urine.

If your air conditioner stinks like urine, it could be due to a variety of factors. One possible cause is a accumulation of bacteria or mold in the your HVAC. This can happen in the event that moisture accumulates in the system and creates a wet environment that is conducive to bacterial growth. The bacteria can emit a foul odor that it similar to urine.

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

Your AC Smells Like Burning Plastic

If your air conditioning unit smells like burning plastic, this could indicate an electrical issue with the unit. Over time, the electrical parts 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 stuck in the the air conditioner. If something foreign gets stuck in the air conditioning system, it can get hot and result in a smell like burning plastic.

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

The Air Conditioning Smells Like Gas

If your air conditioning smells like gas, it could be due to a natural gas leak in the unit or in the surrounding area. Natural gas has a distinct aroma, often described as smelling like rotten eggs or sulfur. That’s because a smell is put into natural gas so that it is easily detectable.

As stated previously, a natural gas leak can be VERY harmful 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 call your gas company or emergency services right away.

The Air Conditioning Smells Like Fish

If 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 produces an environment that fosters 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 result in a smell like dirty feet.

Another potential cause of the smell could be a dead animal or other biological material trapped in the air conditioning system. This often is possible if an animal such as a mouse or bird gets trapped inside the unit and dies.

To fix the issue, it’s worthwhile to have a professional examine and clean your air conditioning system. They can find the source of the smell and take the correct steps to remove any contaminants and prevent the problem from recurring.

Why My Air Conditioner Smells Like Vinegar

There could be numerous reasons an air conditioning system smells like vinegar. One possible cause might be a clogged air filter. Another potential cause of the smell may be a refrigerant leak. Sometimes after the refrigerant leaks, it can generate 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 diagnose and repair any persistent 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, Titan Heating & Air Conditioning can help locate the correct unit to fit your home’s needs. We offer dependable, expert air conditioner installation in Central Point.

Your AC Smells Like Chemicals

If the smell of chemicals is emitting out of your air conditioning unit, it could be the result of a refrigerant leak. In a situation where the refrigerant leaks, it can create a chemical scent that is often described as smelling like chemicals or paint thinner, vinegar or acetone.

An additional possible cause of the smell could be problems with the electrical wiring or elements inside the air conditioning system. This can cause a burning smell that is like chemicals or burning plastic.

If you think your system has a refrigerant leak or an electrical concern, it’s important to shut 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 prevent injury or damage to your house.

Weird Smells Coming from Your AC? Call the Pros at Titan Heating & Air Conditioning

If your air conditioner smells nasty and you aren’t able to fix it quickly on your own, reach out to the cooling experts at Titan Heating & Air Conditioning. We have years of experience working with a wide variety of AC systems. Our crew has fixed countless air conditioning problems over the years—including strange smells. Call us today for quality AC repair in Central Point!