Odor coming from the HVAC system is a common concern many St. Louis home owners face.
On a hot, humid day, the last thing that a HVAC owner would want to experience is a smelling AC than a cooling one! AC odor is among the common concerns that homeowners face. These issues often indicate it is time for come clean up work.
It is always recommended to call an experienced St. Louis HVAC technician to fix any HVAC related issues. It is better to have correct information about what is causing that AC to smell and then take necessary actions to eliminate and prevent it.
What Causes AC Odor?
A number of factors can cause an AC to smell. The most common causes are mold and mildew accumulating in some part of the HVAC system. Apart from this, a dirty filter – which is designed to flush out odor causing contaminants out of the system – could also cause AC odor. Other factors originating either inside or outside the house like chemical cleaners, perfumes, candles, or exhaust fumes, can get transported through the HVAC system causing the AC to eliminate odors.
The following are some of the zones in the HVAC unit that could cause AC odors.
Over time, evaporator coils accumulate dirt, dust, and debris circulating in the HVAC system. Post winter, when the air is damp, these coils become a breeding ground for mold and mildew. Moreover the attached components like the drain pan and the drain line that carries moisture out of the system could get clogged with mold and mildew.
Air filters flush out the contaminants from the airflow and prevent it from reaching the supply ducts. If clogged, they can cause odors. It is essential to check these regularly and change the filters when necessary, to prevent bad odors.
If a system does not control the moisture levels in the AC well, it could lead to moisture in the ductwork. This moisture combined with accumulating debris can become a breeding ground for mold and mildew. Moreover, any holes, gaps, or breaks in the ductwork can allow outside odors to seep into the system, or allow seepage from the outside to cause dampness in the ductwork, leading to mold and mildew, thus leading to odor.
Preventing AC Odor
Prevention is better than cure. Therefore it is best for homeowners to first change their habits. Homeowners should –
- Use an exhaust fan while showering or cooking
- Consider using natural cleansing agents rather than a chemical cleaner that could emit toxic fumes.
- Keep the floors, linen, and surfaces clean to prevent dust from accumulating and circulating through the AC ducts.
Additionally, homeowners can opt to use high-efficiency air filters with a higher MERV rating that have the ability to remove smaller contaminants like mold spores, microbes, and bacteria.
An air purifier can also help in creating a clean indoor environment and air purifiers with ultraviolet lights can curb the growth of mold and mildew, microbes, bacteria and other contaminants inside the HVAC system.
It is also essential that the HVAC system undergoes regular service and maintenance checks conducted by a trained and experienced St. Louis HVAC technician. These simple steps can ensure a well-functioning odorless AC!
Call Hely Heating and Air Conditioning today at (636) 305-9555 for all your St. Louis heating and cool needs!