We have an evolution pellet stove that we have had for 4 years. We took it out and did a thorough cleaning of it this summer. Last year we had a problem with the auger hanging up and not dropping pellets. That seems to be fixed, but now the ash pot is filling up in about 6 hours and shutting the stove off. We have tried different brands of pellets. We also have adjusted the air flow. Does anyone have any other suggestions?