I have a St Croix Auburn corn-pellet stove that I bought in 2005 and have been using pellets for around 15 years with no problem's with it feeding. This winter after start up the 1st of Nov. the auger quiet feeding the pellets the middle of Jan. Thinking it was the motor I ordered a new one and replaced it but still wouldn't turn so I searched and found this web site and found out it could be fines keeping the auger from working. I removed the auger assy and cleaned the fines & pellets out added a little grease on the upper shaft that goes into the bushing and replaced it. Yesterday it quite again same problem so I cleaned it out again and it started to feed like it should but during the night it quite again. When I had it out I noticed the end of the shaft that I had greased looked cruddy, otherwise could the diameter of the auger be worn enough allow the pellets and fines to stop the auger from turning? Also I have been using Heartland wood pellets out of South Dakota for years with NO problems but this year they seem to be softer and tend to break apart easier. Any ideas?