I have cleaned this stove up and down. It worked fairly well for the first part of the winter. I cleaned it again on a warm January day. I took it outside and used an air compressor to clean it all out. A few days after re-installing it started again with the pellet build up. Now it will not burn the night without snuffing it self out. I went to purchase a new stove becauseIi am very frustrated. The stove is 20 years old. The dealer said that the Whitfiled stove is a good basic stove and that i probably did not need a new stove. When I told him what the symtoms were he told me that it had to be the combustion blower. He told me to check the amperage. The manual states it should draw .9. I put the amprobe on it and it read .854. Does the convection blower have any affect on combustion? I am glad that I did not just change the blower because it is almost $200. By the way, I have taken off the unit and cleaned it. I was disappointed that there was not more ash in there. I also think that I am getting too much ash in my burn pot. Any help would be appreciated. Thanks.