I have a P-75 Freestanding that I just had to replace the auger motor. Found a new one at Graingers. Looks to be a exact replacement. Hooked it all up and now it seems like it wont keep running. The motor is working and turning the auger. Just seems like it is not dropping pellets very often. Any ideas on the problem? It looks like it is using up pellets but they just don't seem to drop.