When your air conditioner starts spewing strange or unappealing odors, it is necessary 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 sign something mechanically wrong with the air conditioner. Some smells are a warning of a hazardous problem, including a natural gas leak.

At Ameri-Tec, 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 skilled specialists has smelled it, too—and fixed it! We’ve earned the reputation as the first call for air conditioning repair in Narvon.

What does a specific odor billowing from your cooling system mean? Here are several frequent air conditioner aromas and what they might mean:

My Air Conditioner Smells Like Feet

If your air conditioner smells like feet, it might be caused by a buildup of bacteria or fungus inside of it. When moisture accumulates inside the unit, it can produce an environment that is conducive to the growth of bacteria and fungus. This can result in a nasty odor that is often described as smelling like stinky feet.

Another likely reason for the stench of dirty feet might be a dirty air filter. If an air filter becomes filled with dirt, dust and other debris, it can result in substandard 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 replace the air filter routinely to ensure good air quality and restrict the growth of bacteria and fungus.

The Air Conditioning Smells Like Rotten Eggs

If your air conditioning equipment stinks like rotten eggs, it may be due to 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 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, get everyone out of the building and call your gas company or emergency services right away.

Your AC Smells Like Mildew

If your air conditioner emits a smell like mildew, it could be due to a accumulation of moisture inside the unit. When moisture forms inside an air conditioner, it can foster 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. Once the air filter becomes clogged, it can result in poor air quality and a musty smell that is similar to mildew.

Regular air conditioning maintenance from Ameri-Tec can help avoid both of these issues, because a good cleaning, inspection and filter change is a terrific way to keep your system running at its best!

My Air Conditioner Smells Like Urine

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

If your air conditioning smells like urine, it could be traced back to a number of things. One possible cause is a buildup of bacteria or mold in the your cooling system. 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 feasible cause of the smell could be a plugged drain line. The condensation that forms inside the air conditioning unit needs to drain away correctly, but if the drain line becomes choked with debris, it can cause water to back up and collect inside the unit. This can generate a musty smell that resembles urine.

Your AC Smells Like Burning Plastic

If your air conditioner smells like burning plastic, a possible cause could be an electrical concern with the unit. After a while, the electrical elements in the air conditioning system can wear out or break, which can create a burning smell that resembles plastic.

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

If you notice something that smells like burning plastic coming from your cooling system, it’s important to contact a professional right away.

Your AC Smells Like Gas

If your air conditioning smells like gas, it could be due to a natural gas leak in the unit or in your home. Natural gas has a distinctive smell, often described as smelling similar to rotten eggs or sulfur. That’s because this scent is added to 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. If you suspect a gas leak, turn off your air conditioning system, open windows and doors to air out the home, leave the building and call your gas company or emergency services as soon as possible.

The Air Conditioning Smells Like Fish

If your air conditioning equipment smell like fish, this could be a sign of a build-up of bacteria or mold in the unit. Moisture causes an environment that fosters the growth of bacteria and mold. This can cause a foul odor that is sometimes 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 is possible if an animal such as a mouse or bird becomes trapped inside the unit and dies.

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

Why My Air Conditioner Smells Like Vinegar

There could be multiple reasons an air conditioner smells like vinegar. One possible cause of the smell could be a dirty air filter. A second potential cause of the smell could be a refrigerant leak. Sometimes after the refrigerant leaks, it can create a chemical odor that resembles vinegar.

To fix the issue, it’s important to have a skilled mechanic look at and clean your air conditioning.  If the odor continues after the cleaning and changing 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, they can tell you if your air conditioning ought to be replaced.

If you are wanting to upgrade, Ameri-Tec can help select the correct unit to fit your home’s needs. We deliver dependable, expert air conditioner installation in Narvon.

Your AC Smells Like Chemicals

If the smell of chemicals is coming from your air conditioning unit, it could be caused by 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.

Another possible source of the smell could be an issue with the electrical wiring or hardware inside the air conditioning system. This can result in a burning smell that resembles 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 hazardous and may require immediate attention to protect against injury or damage to your residence.

Strange Smell Coming from Your AC? Contact the Experts at Ameri-Tec

If your air conditioner stinks and you aren’t able to fix it easily on your own, contact the cooling professionals at Ameri-Tec. We have plenty of experience working with a wide variety of air conditioning systems. Our crew has fixed a multitude of air conditioning problems through the years—including weird smells. Call us today for quality AC repair in Narvon!