I have had 30 inch mes for many years, it finally bit dust, bought new old style stainless 40 inch for Christmas, it bit dust after 3rd smoke, and Masterbuilt sent me new generation 40 inch, not happy but it is what I got. I had to cut power cord and remove data plate from old style 40 so they would send me new one, I want to rebuild it, any suggestion on a pid and how to set it up