I've posted here about humidity (lack thereof) problems. Won't go above 22% when it is cold outside.
After trying lots of things, found out that smoke from a blown out candle will not enter the vents to my fan powered humidifier (Carrier).
I opened it up, and it sure looks like the fan is blowing air OUT instead of into the cold air return duct.
I had to installed at the same time along with 2 new furnaces, and I think both are blowing air out.
Is this possible? How to correct?