My wife picked me up the MES 40 from SAM's last weekend and I have been dying to try it. I ran it twice this past week to season it and everything looked good. It came up to 275 and held it for 3 hrs with no problem. So today i invite my family over for some baby backs, I figure that's an easy way to start. I planned on doing the 2,2,1 and put the ribs on at 1:00. Well the unit wouldn't get over 175 for the first hour, then held at 195 for the second hour, I was not sure what to do? I left them on another hr and the unit got up to 200 for the 3rd hour. I pulled, basted, and foiled then stuck them in the house oven at 275 trying to get them up to internal temp. So i figure an hour at 275 should finish them we'll see. I can't figure out what the problem was, now the unit is up to 225 empty but that's it. I guees this will be going back to SAM's.