I have a ge model

Question

I have a ge model GTS22KBMCC with a IM4 ice maker. the ice maker is not making ice. I checked the water line and it is flowing good . I hear it trying to pump water, but nothing goes in the ice tray. when I pour water in the ice tray, it makes ice.Is there a filter that could be clogged? If so , where is it and how do I cleanthanks