Amana side by side model SZD26VW,serial # 0001250426 bought april 2000?

The ice maker water valve does not shut off completely and drips water. The water collects in the bottom of the cube bin,freezes and jams the ice dispensor.The ice maker produces cubes leading me to believe the problem is strictly a matter of the water valve not shutting off completely. I do not know any details of the valve i.e. shut-off operated how(float not likely in freezing environment)---type of valve seat(tight closure might be blocked by ice or foreign particle on seat)
I used to service and tune my auto before the "computer age". Does my ice-maker problem appear to be something a home handiman might fix? If so where could i get some guidance?thanx a lot