ice maker quit making ice

I replaced the Electronic control boards because the indicator lights were letting me know that there was a problem, but!!!! when that did not fix the problem, I took the ice maker out and removed the control module from the end of the icemaker only to find out that water had gotten in there and corroded the electronic contacts... this may have been why the indicator lights were not working on the emitter and receiver. I was going to purchase just the module, but the entire ice tray was beginning to de-laminate and plastic was flaking off all over. To make a long story somewhat shorter, I purchased a new icemaker and it works fine... one caution though... My icemaker did not come with any information that told me I had to flip the icemaker to the "on" position from vacation mode by inserting a screwdriver in the back of the module inside of a small white ring. This hole is where the shut off arm WOULD go if my model had one.