Hi All! I am wondering if anyone can validate or debunk my worry.... Long story short, I am the director of a domestic violence shelter, we received an energy efficiency grant to upgrade our HVAC system(s) about 1.5 years ago. A new AC unit was installed- Trane XR15. Since the unit was installed we have been suffering from an awful stinky feet, stinky cheese smell that seems to coincide to when we have the AC unit running. We have done everything from having mold sniffing dogs to having all of the duct work vaccuumed out to no avail. I am curious if ANYONE has ever experienced this type of smell associated with a new furnace/AC unit. We are hitting a wall here and have no other avenues to explore. We DO feel fairly insistent that the smell arrived coinciding the new AC/furnace unit. However we do not expereince the smell as significantly/persistent in the colder weather when the AC is not on...... PLEASE HELP! ANY thoughts? Suggestions of what to have inspected by whom? Validation?