JVB37H1BB General Electric Range Hood

I pulled up the wires that the membrane switch hooks to and connected the new one with the new sensor pushed them down the opening. Took the sticky paper off the up and down button and stuck it too the indentation where it goes and there you have it as good as new! Works great!

In the process of diagnosing the problem, the circuit board burned out and the fan switch broke. Had a great deal of difficulty removing the unit. Had to disconnect gas line to range top and remove it first before I could remove the downdraft unit. I still had to get some crazy glue to hold down new microswitch on top of the unit. It is finally working fine now.

Disconnected power and removed electrical cover
Disconnected wires from old controller one a time and connected to new controller as to not mismatch wire connections. Left new controller hanging off wires.
Raised vent and held using wood blocks to expose gap to use 1/4 inch wrench to undo screws from the inside (poor design for replacing the controller - this was the bulk of my time.) if this didn't work, I would have had to disassemble more of the downdraft.
Installed new controller.
Removed chocks, enabled power and tested...after verified, re-installed electrical cover.