What would cause my stove to not continuously blow out hot air on the lowest setting? It used to before, but I'm not sure what has changed or failed and am not sure where to look. The stove likes to cycle pellets into the burn pot for about 2 and a half minutes, then kick on for about 6 minutes (meaning outputting hot air into the room) then stop again in this pattern. Is there a setting I'm not aware of that can be altered or something worn out? Any help is greatly appreciated!