So my wife gave me a new smoker after my last stick burner rusted into a heap and she had it hauled away..... This a traeger 572 and my first experience with pellet smokers. After the initial burn in. I started a couple butts on 225. I watched the temps oscillate from 175-305. After 3 hours the temp dropped further and it was out. I removed the pellets from the firebox and restarted according to directions. After another 3 hours or so it was out again. This time I emptied the full burn pot again and vacuumed everything out again. Finished the cook with similar temp swings. Tried again the next day and went out again with an ler error and a full pot of pellets when I wasn't watching. Ambient temps have been 55-70. No wind to speak of. Literally following the procedures with directions in my hand. Using traeger pellets that came with it. It's new, clean, no Ash, no grease. The good news is the pulled pork was excellent so I don't mind the temp swings. I just want it to stay lit. Any ideas and is this normal? Thanks!!!