I am in the prosses of trying to installing a new controller on my older
Masterbuilt. I think I am going with one of these.
https://www.auberins.com/index.php?main_page=product_info&cPath=14_28&products_id=72
The people at Auber Instruments are a little frustrating to work with. I am trying to get them to help me with the rewiring. If it was a new
Masterbuilt, they have a tutorial to help with the rewiring, but since it's an older one I keep getting conflicting and unclear help. Through the very knowledgeable people on this forum,
View attachment 399110 I think I have it figured out.
There is a panel on the bottom of the smoker. Once you drill out the rivets,
(1/8" bit) you will see something like this (see attachment) You connect wires #1 and #4 which bypasses the old controller. Now you can plug the smoker into the PID Controller. I am hoping to get verification on my wiring today. I am 95% sure it's correct from the other rewiring tutorials I have read here.
Hope this helps