Purchased a used freestanding Accentra that needed an auger. Took everything apart, cleaned, replaced gaskets and purchased new auger. Everything seems to work fine in test mode. Purchased a bag of pellets from the local Tractor Supply. Barely filled the bottom hopper. Followed instructions to run the unit. Almost immediately the auger seemed to jam. Took it all apart. Vacuumed all pellets out of the auger chamber. reinstalled and tried again, same thing. The auger jammed. Unplugged it right away. I'm at a loss right now. Suggestions.