When your air conditioner starts spewing odd or unappealing odors, it is important to take notice because it could be a sign of a major problem. Ignoring unpleasant smells coming from your cooling system can lead to serious damage to your HVAC system or even pose a risk to your health and safety.

Depending on what you’re smelling, the cause may be bacteria or fungus in the system. Other times, it could also signal something mechanically wrong with the air conditioning system. Some smells are even indicative of a dangerous situation, such as a natural gas leak.

At Miller Climate Control LLC, we have a nose for these sorts of things. If you smell something weird coming from your air conditioner, you can bet that our team of qualified specialists has smelled it, too—and fixed it! We’ve earned the reputation as the premier company for air conditioning repair in Georgetown.

What does a certain smell coming coming from your air conditioning mean? Here are some typical air conditioner odors and what they could mean:

The Air Conditioning Smells Like Feet

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

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

To solve this problem, 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 on a regular basis to promote good air quality and restrict the growth of bacteria and fungus.

My Air Conditioner Smells Like Rotten Eggs

If your air conditioner reeks of rotten eggs, it could be caused by 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, which is because of a substance 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 air out the area, make everyone leave the building and call your gas company or emergency services immediately.

Your AC Smells Like Mildew

If your cooling system smells like mildew, it may be due to a collection of moisture inside the unit. When moisture forms inside a cooling system, it can cultivate the growth of mold and mildew. This can cause a musty smell that bears a resemblance to mildew.

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

Routine air conditioning maintenance from Miller Climate Control LLC can help prevent both of these situations, because a good cleaning, inspection and filter change is a very good way to keep your system working 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 wet environment that is conducive to bacterial growth. The bacteria can create a foul odor that some people describe as smelling like 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 generate a musty smell that resembles 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 elements in the air conditioning system can wear out or break, which can create a burning smell that resembles plastic.

Another possible root cause of the smell could be a foreign object lodged in the HVAC system. If something foreign gets trapped in the air conditioning system, it can get hot and emit a smell that reminds people of burning plastic.

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

Your AC Smells Like Gas

If your air conditioner smells like gas, there could be a natural gas leak in the unit or in another part of your home. Natural gas has a distinct odor, often described as smelling similar to rotten eggs or sulfur. That’s because an odor is put into natural gas so that it is easily detectable.

As stated before, a natural gas leak can be VERY dangerous 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, get everyone out of the building and contact your gas company or emergency services right away.

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 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 result in a smell like dirty feet.

Another possible cause of the smell could be a dead animal or other biological material trapped inside the air conditioning system. This often can take place 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 check out and clean your cooling system. They will be able to identify the source of the smell and take the appropriate steps to remove any contaminants and prevent the problem from recurring.

My Air Conditioner Smells Like Vinegar

There could be multiple reasons a home’s AC smells like vinegar. One possible cause might be a clogged air filter. Another likely cause of the smell could 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 essential to have a skilled specialist examine and clean your air conditioning.  If the odor lingers 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 mechanic can tell you if your air conditioning should be replaced.

If you are wanting to upgrade, Miller Climate Control LLC can help locate the correct unit to fit your home’s needs. We deliver reliable, expert air conditioner installation in Georgetown.

My Air Conditioner Smells Like Chemicals

If the smell of chemicals is emitting out of your air conditioning unit, it could be caused by a refrigerant leak. If 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 an issue with the electrical wiring or components 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 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 avoid injury or damage to your house.

A Nasty Odor Coming from Your Cooling? Contact the Experts at Miller Climate Control LLC

If your air conditioner smells nasty and you aren’t able to fix it smoothly on your own, contact the cooling specialists at Miller Climate Control LLC. We have plenty of experience working with a wide variety of cooling systems. Our crew has fixed many air conditioning problems over the years—including strange smells. Call us today for quality AC repair in Georgetown!