First off, thank you to anyone who can help me at all, you are greatly appreciated. Hoping to get an education on pellet stoves. I have a King Ashley 5500 pellet stove. Its vented thru the wall directly behind it. Has a 90 degree elbow, goes up about 24 inches then exits thru about 3 ft of pipe to outside. I have vacuumed it out every day as there is excessive ash build up but I have never removed the as plates next to the ash pot. Could this be causing the bad burning lately? I have been running on auto setting is it possible I need to do differently?