air vent odor
>chemcially cleaned before you moved in. If
>it were a refridgerant leak, it wouldn't
>last that long and you would notice it. Do
>you notice it more when you run your a/c?
I turned on my a/c but did not notice any increase in smell. The cold air seems to push out the odor residing in the ducts and then the cold air coming out smells ok. But when I turn the a/c off for a while the smell comes back.
The odor seems strongest from the vent furthest away from the a/c and heating units, i.e., the master bedroom vent, which seems strange.
>it has a deep water trap in the line and
>that the line is not attached to the
>plumbing vent stack. When the trap dries
>out in fall and winter sewer gases can come
>back into the ductwork from a plumbing vent.
I checked with the builder who said the drain line is not attached to the sewer line. I took a sniff from the drain line and did not smell anything.