The stove always gets cleaned good twice a week. This week life got in the way and was cleaned only one time. It was burning fine before the cleaning. After the cleaning it was a smoldering fire and was being fed to Manny pellets I think.I do not know what has changed. I checked the thermal coupler per the owners manual thinking I may have bumped it. It is in the burn pot about an inch and the cover is against the wirer . I took a coat hanger and checked that the burn pot holes are clean. I do not thing it is a fuel problem ( bad or wet pellet) as it burned fine before the cleaning.I do not think it is a feed gate adjustment as it burned fine before.I pulled the ingniter plate off and vacuumed out the igniter box which did not have much fines in it. My plan to night is recleane the burn pot with a stiff wirer brush and check the bun pot holes and move the thermal coupler in some. I am burning Ligetics in this stove and my new P68 . I will send pictures of the new basement install which is working out better then expected for a no insulation stone basement. when I figure out how to re size them for the web site. So does any one have any suggestion's on my quad as I am out of Idea's on it. Thanks for any and all input.