need ice maker to keep making ice on its own?

my Ice maker will work then stops I have to turn it off then turn it back on every time it makes one chunk then stops you can hear it making noise like it doesnt have enouf water so I turn it off unscrew the drain cap then screw it back on and turn it on then repeat when it starts making noise again I ran the clean cycle 4 times to make sure still the same its a kitchen aid superbra ice maker 3 ft by 2 ft