When your air conditioner starts putting out strange or unappealing smells, it is important to take notice because it could be a sign of a big problem. Dismissing unpleasant smells coming from your cooling system may lead to serious damage to your AC or even pose a risk to your health and safety.

Depending on the smell, the culprit might be bacteria or fungus in the system. In other cases, it could also signal something mechanically wrong with the air conditioning system. Some smells are a warning of a dangerous situation, including a natural gas leak.

At Ameri-Tec, we are experienced at getting to the root cause of stinky smells. If you smell something peculiar coming from your cooling system, you can bet that our team of qualified professionals 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 wafting out of your cooling system mean? Here are some common air conditioner aromas and what they may mean:

The Air Conditioning Smells Like Feet

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

Another potential cause of the stench of dirty feet may be a dirty air filter. When your HVAC system's air filter becomes filled with dirt, dust and other contaminants, it can cause 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 exchange the air filter routinely to ensure good air quality and prevent the growth of bacteria and fungus.

My Air Conditioner Smells Like Rotten Eggs

If your reeks of rotten eggs, it may 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 because of a substance added to it to make it easily detectable.

A natural gas leak is very dangerous and requires immediate attention. If you suspect a gas leak, turn off your air conditioning system, immediately open windows and doors to ventilate 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 accumulation of moisture inside the unit. When moisture accumulates 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 reason for the smell may be a soiled air filter. If the air filter becomes clogged, it can lead to poor air quality and a musty smell that is similar to mildew.

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

The Air Conditioning Smells Like Urine

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

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

Another possible cause of the stink 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 build up inside the unit. This can produce a musty smell that is sometimes described as smelling of urine.

Your AC Smells Like Burning Plastic

If your air conditioner smells like burning plastic, this could indicate an electrical issue with the unit. After some time, the electrical parts in the air conditioning system can wear out or malfunction, which can create a burning smell that resembles plastic.

Another possible reason for the smell could be a foreign object that somehow got in the the air conditioner. If something foreign gets stuck in the air conditioning system, it can heat up and result in a smell similar to burning plastic.

If you notice something that smells like burning plastic coming from your AC unit, it’s important to phone 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 smell, often described as smel