Hello. I am new to the site but have had my p68 for 2yrs. We have always had the stove on room temp mode with the igniter set to auto and at night or when not at home we turn the stove down a ways. Recently when it starts up after being out for a while it has the lazy, really dirty flames. This lasts for about 2-3 minutes and then it seems to catch up and burn right but not before getting the top 1/4 of the glass black with soot. It acts as if when it starts up it puts too many pellets into the burn pot so that it lacks air. A few dont get completely burned and then it catches up and burns pretty good. Switching the igniter to manual fixes that problem but doesn't solve the issue. Any suggestions would be appreciated. Thanks