I'm trying to set the low draft on a friends xxv, but the the stove is not alternating between high and low, the draft stays exactly the same. The lowest I can get it is .6. I'm using a dwyer markII manometer, and have done this on my own advance in the past. The advance has two distinct levels, low and high, and I was was able to set the draft properly. He called his dealer, who called harman, who said this is normal.... which contradicts their own manual, and the way mine runs.
Any one ever run into this??
Any one ever run into this??