I just recently intalled a American Harvester 6039 (Old Model with no manual damper and old abc control board). It seems to run really well if i turn it up to H9 on the heat settings and blower.But i would like some information on how to make adjustments on this control board if possible to get it to run better on the lower settings. I am currently burning hard wood pellets only and there is a outside air kit installed on the stove. Any information would be appreciated as i am new to pellet stoves.