Thanks John. Sorry for the confusion.
This one pic is of the new board wired in.
I traced the wires to make sure I had not connected incorrectly
On the right marked S goes to board (serial connection)
Next on the left is ground and goes to ground.
Next on the left is power.
Next on the left is ground again....going to ground on smoke unit.
Next on the left and last wire is brown and goes to Heater on smoke unit.
Could it be that the regulator is bad?
Thanks Dave