Just had Napoleon NPI45 pellet insert put in yesterday. Not much operation training ,just got the manual handed to us. It was burning fine yesterday and last night. AT ABOUT 3AM 2ND OR 3RD LITE WAS FLASHING AND STOVE WAS OFF. I looked in hopper and appeared pellets were only on sides of hopper and nothing in middle, little ash was in bowl. I took the bowl out to see if clogged and emptyed it. Much brown ash was on firelogs. I unplugged it and replugged and restarted again. It is not burning to day like it did yesterday. Has only come up about 3 degrees this morning. Any tips will be greatly appreciated. Mrs. GMDur