The auger in my insert sliced a hole in the tube that feeds the pellets to the burn pot. I talked to my dealer today and he said that the pellets were burning back into the auger and this caused the the tube to expand. Harmon has a fix for this and he will be at my house tomarrow to replace the tube and Harmon has a replacement for the bottom of the burn pot that does'nt have the holes near the auger. Now that is what I call fast service>