So the first time I had smoke coming out of the pellet box/auger was during my third or fourth cook. I hadn’t been cleaning out the fire pot after/before each cook (KC Combo has an ash removal tray, but it doesn’t work for shit) so the ash would build up and cause the fire to burn back. Each of those cooks were less than 2 hours. After doing some research and talking to a friend that has an Austin XL, which doesn’t have an ash removal tray, I realized that I needed to be vacuuming out the fire cup before each new cook to avoid the smoke in the pellet box. Since doing that I didn’t have any issues until I smoked a pork butt and about 4 hours in I was getting smoke in the pellet box and fire out of the auger tube. The ash from a long cook like that caused the same problem. I had to remove everything mid cook and clean out the fire cup in order to continue smoking. So the conclusion I’ve come to is;
1. Cleaning out the fire cup before every cook
2. Prepare for a mid cook cleaning for anything over 3-4 hours
3. Don’t trust the ash removal tray/system
The KC Combo was expensive and I love it, but it requires more attention than I think it should for what Pitboss claims it is capable of.
With that being said, sifting the pellets to possibly help avoid buildup and/or fire is something I will be doing from now on.
Pitboss has been no help in the matter. I’ve submitted a claim and it took them about 3 weeks to respond and the response was no help whatsoever.