08/26/2026
🚨 HVAC Inspection Tip: A missing cap on an
A/C condensate drain trap is more than a minor defect—it can prevent proper condensate drainage during system operation, leading to condensate backup, water damage, and conditions that may contribute to poor indoor air quality.
Additionally, the secondary condensate drain is neither piped to a visible location on the exterior of the home nor equipped with an overflow protection float switch. An open secondary outlet like this can also allow unconditioned attic/crawl space/garage air to be drawn into the home’s conditioned space, reducing system efficiency and impacting indoor comfort.
Small installation details like these can have significant consequences. Proper condensate management is essential for protecting both the HVAC system and the home.