I just bought a new castle serenity pellet stove and it is constantly jamming. As the auger feeds the pellets upward, the pellets are getting wedged between the auger blade and the tube that the pellets go up into. I have to stick my hand down into the pellets and break them away from the auger to clear them. I have to use a screwdriver sometimes since they wedge tightly. I have tried several types of pellets with the same results. When I fill my hopper past the top of the auger it jams even more. I can only put in about 3 - 4 pounds of pellets at a time. Anyone have the same problem or any advice. We only had it working for 2 days and are on the verge of returning it.