If all the connections look good then the next major problematic part of the MES is the controller.
There isn't troubleshooting to do with it. It either works properly, does not work properly (seems like your case), or does not work at all.
You can contact them and if within warranty they usually send out another panel no problem... other than the wait.
Now if they fall through on you or you simply want to join the big boys you say to hell with the MES controller and do a simple rewire and use a different controller like the an Auber PID controller (PID = Proportional Integral Derivative). It will keep your MES within about 2-3 degrees of your set point and turns it into a smoker that outperforms the stock MES no contest.
You lose the ability to burn wood chips but all us MES owners basically use the
A-Maze-N Pellet Smoker tray (
AMNPS) and pellets anyhow so it has never been an issue since we upgraded smoke generation that way.
Here is a good post on the simple rewire of the MES to be ready to work with an Auber PID Controller:
Lately I've seen a number of posts about guys wanting to rewire their MES. I had wanted to post a quick and simple guide for those out there that are curious or those that simply need to rewire but need a little assistance. Well here goes. Disclaimer: When messing with electrical equipment...
www.smokingmeatforums.com
Let us know how u want to proceed and we can keep helping u :)