First thing I would check the wiring from the Auger motor and Fan to the control board and make sure they are not crossed. It seems that this issue has been showing recently with these grills out of the factory. Look at the wiring diagram in the manual and you will see the wire to auger to the control board and the fan wire to the control board and make sure they are connected properly.
Mine smokes on and off all the time.
When I go outside to check on my BBQ Ribs there would be NO smoke at times and after a few mins Smoke comes out of the outside vent.
Smoke is not always there when cooking......................JT
After about two years I had a similar circumstance. I set it at smoke and the temperature took off. It was like a runaway reactor. I'd get to 500º pretty quickly.
I looked in the manual and read that it was a bad RTD. The, I had to figure out what in h##l an RTD was. Turns out it a temperature probe. RTD -> temperature probe. Yeah, completely intuitive.
I ordered and replaced the temperature probe. It was actually a pretty straightforward task. Works fine now. But new out of the box? Like you have? After I came down off the ceiling, I'd be looking for a different brand.
Best wishes. I hope you've been able to work this out.
DaveXDm9 also tells you you probably have a bad RTD. Fine, if you're a Pit Boss staff member. But it could be meaningless to someone who isn't. What's wrong with using words. Words mean things.