Bought a house and now have a Whitfield WP2 Advantage. Fire won’t stay lit-seems like the auger isn’t keeping up. Replaced the bushing yesterday -it was in need and I thought that would solve it. But still didn’t stay lit last night. Thorough cleaning-took out fire blocks, cleaned under fire pot, and cleaned exhaust chimney and the two clean out traps. It starts and goes fine but then eventually it just goes out as there aren’t enough pellets being dropped. Any help is appreciated!