Posted on: 21 February 2017
The HVAC system is designed to regulate airflow and control the temperature of air in the home. The system does not control air odors, and from time to time, you may notice that the air flowing from your vents smells a little foul. Most times, this may be temporary and harmless, but at other times it may indicate a problem with your system. Here you will learn some of the factors that may compromise the air quality in your HVAC system and how you can get rid of the foul odors.
Electrical issues in A/C unit
The most common cause of foul odors in the HVAC system can be tracked back to electrical or mechanical problems with the air conditioning unit. The A/C unit has moving parts such as the fan and motor. Due to poor maintenance, these parts can overheat, seize up, or even catch fire during their operation. When this happens, you will notice a burning smell in your home, especially from the vents.
If you notice a burning smell in the home, switch off your HVAC system and inspect the outdoor unit. The burning smell will be stronger around this unit, and you may even notice smoke coming from it. You will need an electrician or an HVAC contractor to repair the unit and replace the defective parts so that the air quality in the home can be restored.
If one of the members in your home smokes tobacco, the smoke will be circulated throughout the home by the HVAC system. Remember, the system recycles the air, regulates its temperature, and controls the flow, but it does not filter the odors. Tobacco smoke usually attaches to the condenser coils in the unit, and it can only be eliminated by cleaning the ventilation ducts.
The process of cleaning ductwork to get rid of tobacco odors requires opening up parts of the HVAC system. If you don't have the equipment or expertise to do this, it is essential that you consult a professional.
Mold and mildew
Mold and mildew can grow inside your HVAC vents due to leaking ducts and poor ventilation in the home. They usually cause the air to smell damp and musty. The foul smell can only be eliminated by treating and cleaning the vents to get rid of the mold and mildew. In addition to treating the system, you should also fix the underlying problem so that you don't end up dealing with the same issue all over again.
Call a professional contractor if you notice that the air quality in your home has deteriorated and you suspect a problem with the HVAC system.Share