Did you know your HVAC system can become a hidden breeding ground for mold and bacteria?
The dark, damp interior of an air conditioner is the perfect environment for bio-growth.
These contaminants not only affect system performance but also your indoor air quality. So, how can you keep your HVAC system clean and healthy?
Let’s look at the specific maintenance steps that eliminate bio-growth and prevent it from coming back.
Start With Safety
Before tackling any cleaning task, safety should come first. Always shut off the power to your HVAC system at the breaker box to avoid electrical hazards.
Wear protective gear such as gloves, safety goggles, and an N95 mask to shield yourself from spores and cleaning chemicals. These small steps ensure you can clean safely and effectively.
Clean The Evaporator And Condenser Coils
The evaporator coil is one of the most common places for bio-growth. Because it stays cold and collects condensation, mold can spread quickly.
Start by removing the access panel to reach the coils. Use a foaming, non-acidic coil cleaner and let it sit for about 10 to 15 minutes. Then, gently rinse with water and use a soft brush to remove any remaining grime.
For the outdoor condenser coil, rinse from the inside out to push dirt and debris away from the unit. Clean coils not only stop bio-growth but also help your system cool more efficiently.
Flush The Condensate Drain Line And Pan
Moisture buildup in the condensate drain line can lead to serious mold problems. Pour one cup of distilled white vinegar into the drain line and let it sit for 30 minutes.
After that, flush it with water to clear clogs and disinfect the line. Keeping this area clean helps prevent standing water and reduces the chance of mold forming.
Sanitize The Ductwork
If you notice musty odors or visible mold inside your ducts, it’s time to call a professional. Technicians use specialized HEPA-filtered vacuums and mechanical cleaning tools to remove debris and growth safely.
After cleaning, an EPA-approved antimicrobial treatment can be applied to prevent future contamination.
Maintain Proper Humidity And Ventilation
High humidity encourages mold to thrive. Keep indoor humidity between 30% and 50% by using a dehumidifier or running bathroom and kitchen exhaust fans.
Regularly replace air filters every one to three months and schedule annual maintenance to ensure everything runs smoothly.
Consider Installing UV Light Systems
Adding UV lights to your HVAC system is one of the best long-term solutions for bio-growth. These lights are installed near the evaporator coil or inside ducts to continuously kill bacteria and mold spores as air passes through.
When paired with routine cleaning and filter replacement, UV lights can keep your home’s air cleaner and healthier.
For professional HVAC cleaning, maintenance, or UV light installation, contact SWAN Plumbing, Heating & Air Conditioning, INC. Our experts will help eliminate bio-growth and keep your system running at its best all year round.
