I keep a pretty close eye on our central HVAC unit (located up in the
attic), and vacuum-clean the coils, check for leaks, etc. myself. The
last year or so, however, especially if it's been off for a day or two,
when it first comes on, little flakes of medium-brown paper, the
biggest about like the end of a pencil, come down from some of the
vents, about 10-20 pieces over a period of an hour. They're very thin
Can anybody tell me what this is and where it might be coming
from? I can't see anything like that in the central unit.
Are you sure it is paper, or does it look like paper?
If it is really paper, I would suspect rodent nesting material.
I would also consider it possible that it may be some brown coating
flaking off. Maybe even mud. How old is the duct work; age of home?
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.