I am new here and new to the pellet world. I bought at Breckwell P-23 in October and burned a ton of Maine's Choice without any problems. I switched over to Spruce Pointe and burned about 3/4 of that ton and the combustion motor started shutting off and I would get smoke in the house because the other motor would keep running, the auger would keep turning and dropping pellets. I found it only did this on level 4. I opened the side of the stove with the combustion motor and cleaned it all out and left the side open. I could run it like that for a while but it did it again. The dealer has been great, he replaced the motor and the control panel, it still did the same thing only it didn't take as long to shut down. The dealer then took the stove to his shop and ran it for a few days and it never shut off. He said it has to be the way I have it piped out of the house that is building up the heat. So here is the way I had it hooked up. Out the back of the stove to a T clean out, 2 feet at about a 45 degree angle to a 90 degree elbow and 2 feet straight out the wall to a cap. When I brought the stove back from the dealer I added a 1 foot section to the rear of the stove before the T clean out, hoping this would help reduce the heat on the motor. It didn't work. I turned it on level 4 and within 15 minutes it shut down. The dealer suggested I go to a 4 inch pipe to get the heat out away from the motor. Does anyone else have any idea what the problem could be? The stove has been thoroughly cleaned and taken apart. Thanks