Quick Answer
If your HVAC gives off a sour or musty smell when it starts, you’re likely dealing with Dirty Sock Syndrome—microbial buildup on a damp indoor coil. In Brilliant homes, the fix includes coil and drain cleaning, sealing return leaks, upgrading to MERV-13 filtration, and managing humidity. Honest Fix restores fresh, odor-free airflow that lasts.
Brilliant’s position along the Ohio River keeps basements and crawlspaces humid for much of the year. Many homes near Third Street, Clearview Heights, and Ohio Route 7 have HVAC systems installed close to foundation walls where moisture collects. With the town’s older housing stock and frequent fog rolling off the river, coils often stay wet long after cooling cycles end. This trapped moisture allows bacteria and mold to grow, producing the “dirty sock” odor homeowners smell each spring or fall.
Dirty Sock Syndrome (DSS) occurs when a damp coil gathers dust and organic debris. In Brilliant’s river valley climate, short heating and cooling cycles mean coils rarely dry completely. Microbes colonize the surface and release gases that smell like gym socks or wet towels when the blower fan starts. The odor isn’t a mechanical defect—it’s a hygiene issue caused by poor drainage and humidity. Solving it requires cleaning and system corrections, not masking sprays or deodorizers.
Honest Fix technicians handle DSS through thorough source cleaning and moisture control. They remove the coil for EPA-approved cleaning, flush the drain pan and condensate line, and seal return leaks that pull in damp basement air. Filtration is upgraded to MERV-13 media, and airflow balanced for proper drying between cycles. Optional UV-C lights at the coil prevent regrowth. Each service follows national HVAC hygiene standards, with before-and-after photos showing exactly how the problem was resolved for Brilliant homeowners.
Yes. The Ohio River’s humidity keeps lower-level HVAC systems damp, which encourages microbial growth.
Yes. Our process works with all major HVAC brands and coil types.
The odor itself isn’t toxic, but the microbes can aggravate allergies and respiratory issues if ignored.
Exact HVAC replacement quotes available at (740) 825-9408 or HonestFix.com/schedule-service.
Author: Alex Largent