traeger junior digital thermostat conversion

so i have purchased and installed the 180* digital conversion. I worked great for about an hour. I went to check on it, nothing on the display. I checked to make sure i had power which I did. I unplugged and put new fuse in popped that fuse. I remove and replace blown fuse and remember reading about not being able to use extension cord with digital, runs without popping the fuse on factory cord. Now I get smoke coming out of the pellet hopper. I emptied the hopper, the auger is turning. the fire pot is pretty empty but it appears the pellets are burning back into the auger. What gives? what do I need to do to correct this problem.

thanks for the help and sorry for the long post.

John

sounds like a fan problem is it run ???

im not sure. i will have to check. I got flustard and cold so i put the grill away for the day.