Worth a look. This was the issue on my Laredo 1000:
I couldn’t figure out why my old 820D was kicking my brand new Laredo 1000’s arse on heating up and maintaining heat, until I watched that video. There most certainly is a gap in the area mentioned, because instead of being rounded like on my 820D (to match the shape of the tray), it’s flat, which allows the fan to blow the air from the fire pot on the temp probe! It won’t call for pellets as often, and as a result, it takes forever to heat up and maintain temperature. I tested this theory by putting some folded up aluminum foil between the probe and that gap, and the grill started working properly! Ordered this part right away. Hopefully Pitboss realizes they have a design flaw on these newer grills, and takes care of the customers. People shouldn’t have to order 3rd party parts to make their grill behave properly.