OK, just got done cleaning my Regency Hampton GC60 pellet stove like I do every week and I noticed that the burn pot liner had an unusual amount of hard ash build up in it. I had to bang it with the metal scrapping tool to get it out. I had a hard time getting the agitator out because of this. I finally got it out, finished the cleaning, fired up the stove and checked to see if the agitator was turning after the stove went through its start up cycle and it was not. This explains the hard ash build up. Has anyone else experienced this and know what causes the agitator to stop turning?