I recently ended up with a jamestown j1000 from 1991. After vacuuming and blowing the stove out with compressed air it burns perfectly, but the convection blower is not moving much air at all. The blower itself is only one season old and the control board is only two seasons old. I already tried turning the low fan speed pot on the board all the way ccw to turn the fan up, but it still is not moving much air. There is not change in speed as I rotate the feed knob, but the rate at which the pellets feed does seem to increase. Anyone with an experience with these that could point me towards some trouble shooting ideas? Thanks