When your air conditioner starts putting out unusual or unappealing smells, it is a good idea to take notice because it could be a sign of a significant problem. Ignoring unpleasant smells coming from your cooling system could lead to serious damage to your air conditioning or even pose a risk to your health and safety.

Depending on the cause of the odor, the culprit may be bacteria or fungus in the system. On the other hand, it could also sign something mechanically wrong with the air conditioning system. Some smells are even indicative of a dangerous scenario, including a natural gas leak.

At Air Concepts of Middle Georgia, we are skilled at diagnosing and fixing these type of problems. If you smell something weird coming from your AC, there’s a good chance our team of qualified pros has smelled it, too—and fixed it! We’ve earned a reputation as the first call for air conditioning repair in Milledgeville and Middle Georgia.

What does a specific odor wafting from your air conditioning mean? Here are several frequent air conditioner smells and what they might mean:

Your AC Smells Like Feet

If your air conditioner smells like feet, it might be because of a buildup of bacteria or fungus in the system. When moisture builds inside the unit, it can produce an environment that is favorable to the development of bacteria and fungus. This can cause a bad odor that is often described as smelling like stinky feet.

Another likely reason for the smell could be a dirty air filter. When your HVAC system’s air filter becomes clogged with dirt, dust and other particles, it can lead to poor air quality and a musty smell that bears a resemblance to feet.

To solve this issue, 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 replace the air filter on a regular basis to ensure good air quality and restrict the formation of bacteria and fungus.

Your AC Smells Like Rotten Eggs

If your air conditioner reeks of rotten eggs, it may be caused by 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 very 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 immediately.

The Air Conditioning Smells Like Mildew

If your AC smells like mildew, it may be due to a buildup of moisture inside the unit. When moisture collects inside an air conditioner, it can foster the growth of mold and mildew. This can cause a musty smell that resembles mildew.

Another possible explanation for the smell might be a soiled air filter. Once the air filter becomes clogged, it can result in poor air quality and a musty smell that resembles mildew.

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

My Air Conditioner Smells Like Urine

One of the most distressing things is when your AC smells like urine.

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

Another possible cause of the smell could be a blocked 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 accumulate inside the unit. This can produce a musty smell that can stink like urine.

My Air Conditioner Smells Like Burning Plastic

If your AC smells like burning plastic, a possible cause could be an electrical concern with the unit. Over 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 reason for the smell could be a foreign object that somehow got in the HVAC system. If something foreign gets trapped in the air conditioning system, it can become hot and emit a smell like burning plastic.

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

The Air Conditioning Smells Like Gas

If your air conditioning smells like gas, there could be a natural gas leak in the unit or in the surrounding area. Natural gas has a distinctive odor, often described as smelling similar to rotten eggs or sulfur. That’s because a smell is incorporated into natural gas to make sure that it is easily detectable.

As stated earlier, a natural gas leak can be VERY hazardous and requires immediate attention. Should 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 straight away.

Why My Air Conditioner Smells Like Fish

If your AC smell like fish, it could be due to a build-up of bacteria or mold in the unit. Moisture produces an environment that promotes the growth of bacteria and mold. This can cause a strong odor that is often described as smelling like fish or, as mentioned earlier, it also can create a smell like dirty feet.

Another potential cause of the smell could be a dead animal or other biological material caught in 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 correct the issue, it’s worthwhile to have a professional examine and clean your cooling system. They can determine the source of the smell and take the appropriate steps to remove any contaminants and stop the problem from recurring.

My Air Conditioner Smells Like Vinegar

There could be multiple reasons an AC smells like vinegar. One possible cause is a clogged air filter. A second potential cause of the smell may be a refrigerant leak. When 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 look at and clean your air conditioning.  If the odor lingers after the cleaning and changing of the air filter, it’s best to reach back out to a professional to find and repair any persistent issues with your air conditioning. Or, they can tell you if your air conditioning needs to be replaced.

If you are planning to upgrade, Air Concepts of Middle Georgia can help select the ideal unit to fit your home’s needs. We deliver reliable, professional air conditioner installation in Milledgeville and Middle Georgia.

Your AC Smells Like Chemicals

If the smell of chemicals is coming from your air conditioner, it could be caused by a refrigerant leak. In a situation where the refrigerant leaks, it can create a chemical aroma that is often described as smelling like chemicals or paint thinner, vinegar or acetone.

One other possible source of the smell could be problems with the electrical wiring or elements inside the air conditioning system. This can result in a burning smell that it similar to chemicals or burning plastic.

If you think your system has a refrigerant leak or an electrical concern, it’s important to shut down your air conditioning system as soon as possible 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 Your AC? Call the Pros at Air Concepts of Middle Georgia

If your air conditioner stinks and you aren’t able to fix it quickly on your own, contact the cooling specialists at Air Concepts of Middle Georgia. We have plenty of experience working with a wide variety of AC systems. Our crew has fixed many air conditioning concerns over the years—including funky smells. Call us today for quality AC repair in Milledgeville and Middle Georgia!