Symptoms of Black Mold in HVAC SystemSymptoms of black mold - General info:
Molds produce tiny spores to reproduce. Mold spores waft through the indoor and outdoor air continually. When mold spores land on a damp spot indoors, they immediately begin to grow and multiply, digesting whatever they are growing on in order to survive. Molds, Mildew, bacteria and fungi are all living organisms that live and grow on almost any surface and only require wetness, dampness and a source of food to thrive. You can certainly understand how much air conditioning is en ideal place for mold and bacteria to develop and thrive.
Symptoms of black mold in A.C system
mold can grow on all parts of HVAC system. Other than the insulation (if present), the two other places mold is most likely to grow is the condenser or cooling coil and the drain pan. In central air systems, these are located in the air handler (by the fan). The cooling coil cools the air that comes into the system below the dew point, to remove the condensation from the air. As a result, condensation builds up on the coil itself, making it vulnerable to biological growth, including mold bacteria and all other living organisms. The drain pan is located beneath the coil, and collects the condensation that drips off the coil. Naturally, the water in the drain pan can become the perfect environment for mold growth, especially if the pan is not sloped. If it is flat, then the water will become stagnant, increasing the likelihood of mold growth. If your system has an in-duct humidifier, then it can add too much moisture into the ductwork. When this added moisture combined with dirt and grime, mold can germinate in the ducts.
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