EATC / blower issue - nothing out of the vents
Recently I have stopped getting any flow from basically everywhere. I saw that the O-rings in the EATC were a common issue so I pulled the EATC out and put some silicone O-rings in it, a little fatter than the originals. The old o-rings were not hard or brittle at all. I got everything put back together and still basically zero flow from every area - vents, defrost, floor. I tried messing with fan speed and temp and can't get hot or cold air to come out. Ran an EATC self-test and no codes came up. I can hear things chaging around when I toggle controls but still no air.
It's about to start getting pretty cold so I could really use some heat! What's my next step?
'03 Marauder #4539 300A Zack tune, Flowmasters