Icemaker overflows

Hello,



Good afternoon. We have a refrigerator that is giving us a problem with the icemaker. When the freezer draw switch is closed the fill solenoid is activated, however it will not shut off unless the draw switch is released. The solenoid responds to the draw switch correctly so I would not think that that is the problem. We have replaced the icemaker itself twice with the same kind and there was no change in the operation. To me it seems like a timing issue where somthing is controlling the activiation of the fill selenoid but not shutting it off. I noticed there is a control board in the back that I took a look at and the icemaker and two water solenoids are connected to. I am guessing this is a option control board. Has anyone replaced this board and could this be the problem.



Thanks