There is a petcock in the cold water line in the cabinet under the sink in the bathroom. That needs to be open for the cold water to flow to the icemaker. When that is open and the bale (I think that is what the arm on the icemaker is called) is down and the refrigerator is on, it should make ice. Be patient, it will take quite a while to get ice.
Tom and Margaret
2014 Berkshire 390bh-60