Mold and mildew are two things you definitely don't want in your HVAC system. Mold growth does more than just affect your HVAC system's overall performance. It can also compromise your home's indoor air quality, leading to allergy and asthma problems.
Where Mold Grows
Most forms of mold and mildew growth prefer dark, damp places. Unfortunately, there are plenty of those in your HVAC system. It's not uncommon to find mold growing on the condensate drip pan, condensate drain and the evaporator coil. These areas of your HVAC system can be accessed through the access plate located on or near the plenum.
But mold isn't just limited to the above spots in your HVAC system. Mold spores can also travel through your HVAC ductwork. Although the relatively dry environs of your home leaves most mold spores dormant, it only takes a bit of excess moisture for mold to quickly become a problem throughout your home.
How to Get Rid of the Mold
Start off by replacing your current air filter with a fresh new filter. Chances are the old filter has plenty of trapped mold spores embedded in it. Besides, a new filter also improves your HVAC system's performance.
To remove mold from the evaporator coil, you'll want to use a foaming no-rinse spray formulated for use on HVAC equipment. Simply spray the product on the coil and wait for it to work through the mold and mildew.
To neutralize mold and mildew on other surfaces, you can use a mixture of water and white distilled vinegar.
Vinegar's natural acidity makes it ideal for getting rid of mold, mildew and other bacteria. You can also use a 50/50 mix of ammonia and water to deal with indoor mold.
To neutralize mold and mildew in the condensate drain, you'll want to remove the standing water and mold from the condensate drip pan with a shop vacuum. Afterwards, you can pour a cup of undiluted vinegar into the drain.
Preventing Mold Growth
Keeping your home's humidity levels between 40 and 60 percent is one of the best ways of preventing mold growth. In humid areas, you can accomplish this with the help of a dehumidifier and your own air conditioner, since it offers a slight dehumidifying effect on its own.
You can also have your HVAC technician install a set of ultraviolet (UV) lights within your HVAC system. These lights use the electromagnetic spectrum to break up mold and mildew DNA. For more information, talk to a professional like River City Heating & Cooling.