Anyone ever have trouble with the auger motor quality on these stoves? I am on my third motor in 9 years. The part is PP- 535-1 and I buy mine overpriced (in comparison to other brands) and directly from American Energy Systems. They are American made in Racine Wisconsin. Just wondering if there is a cheaper alternative. Can you get them rebuilt? I cant seem to find one from other vendors that meet the specs. 1.1 RPM, Clockwise, 1/2" shaft.