Al,
The controller number is 101N0210. Does the controller unplug from the frig ? Yes it unplugs I think the plug is underneath the controller and will show itself upon controller removal. I do not see any bolts or screws holding the controller. I do remember it was hard to figure out what was holding the controller in place, the screw holding it is on the opposite side of the electrical connections. If my memory serves me correctly all you have to do is pry the case over the screw that holds it in place.
Good Luck
Bob