Sorry, haven't posted in a while, it's been a busy summer.
Yesterday I had my second fire in my Pro and am pretty much baffled. Before yesterday, the last time I used my grill was to reverse sear some steaks. Because I'd had it super hot and was putting the stock insert back in, I really scraped it the drip pan and stock center insert down well after I ate (the grill was still even pretty warm). This was probably the cleanest my Pro has been since I really cleaned it down after the first fire.
So, yesterday morning I fired up the grill at 275 and put on 4 chuck roasts totaling about 8.5-9 pounds. After a couple hours I turned it up to 325 and continued to cook. A little later the smallest roast was done, so I pulled it, checked the rest and rearranged them a bit and went back inside to take care of some other things. 10-15 mins later, my wife came and said your smoker is really putting out a lot of smoke. So, I ran outside and opened it up to find a decent size fire on the drip tray and even on the grates with temps over 500 degrees (because the sensor was actually getting kissed by some flames).
What did or could I have done wrong here? What am I missing to clean? The grease trays were emptied when I did the steaks (so I didn't even look at them before cooking yesterday because a couple steaks really couldn't put but a few drips of grease in there).
This was my second fire since getting this back in March. I don't remember what I was cooking the first time, but I wrote it off as user error because I had a probe in the first slot and it dropped the temp to 180 when it hit my set temp...and after I realized it I set the temp back up and held down the prime button for like 3-5 seconds to recover more quickly. That was the first and only time I'll use the prime button unless the hopper runs dry and blamed or accepted it as the most likely cause of the fire.
Anyway, I'm getting a little scared now since these were not high temp cooks. I know not to turn it up to 600 degrees after cooking a bunch of bacon and such and hoping someone has some tips.