Hi there.I got on this sight a few weeks ago and very informative.Wanting to share I have a King Ashley 5500M pellet stove.I learned that don't bye a control board unless you check everything first.Was told by support that it sounded like my control board and I refused to accept that.First thought it was my auger motor/bench test ok.Took out my exhaust blower 80473 and it was seized up bad. bench tested and worked but sounded terrible.So replaced the fan and working great. Just remember to clean everything good and don't give up because I was ready too!!