So glad I found this thread! Please pardon my high-jacking of it.
@JRemington - You sound like you know these units well. I'm brand new to pellet stoves too and I'm struggling with my Comfortbilt.
Three weeks ago I installed our new Comfortbilt HP22i-SS and I am having similar issues. I say similar because the stove lights, burns for an indeterminate amount of time (sometimes 15 mins, sometimes 3 hours), feeds pellets erraticallly, and then shuts down. The first two weeks with the stove everything was fine, but the last week or so have been problematic. I have emptied the hopper and vacuumed it out, I have watched the auger move with the hopper empty, cylcled the auger with the hopper empty to clear the auger of any pellets, and verified the light on the control panel comes on when the auger cycles. I have cleaned the ash out of the stove and the burn pot multiple times. I haven't checked the ash ports in the side panels yet. I understand the pellets not falling down to the auger in the hopper and know that this is not the problem (I just check on the hopper and add pellets or push the pile around so it feeds correctly). I don't think I have a bad vacuum switch. I don't think the auger is jammed.
Is it bad pellets that are breaking up and causing the feed problems? After looking around it seems like the pellets I have (Michigan Wood Fuels Premium Wood Pellets) are not the greatest, but I didn't think I would be having issues after only 170 hours of run time? Any thoughts? Anyone?