In most cases you can easily solve this problem.
step one would be to make sure your freezer is getting cold enough. If you have icecream in your freezer is it frozen solid or is it soft. Most icemakers cycle around 0 degrees and if your freezer is not getting to 0 then it will not cycle and it will not make ice.
Step two would be to make sure you icemake is cycling. To do this simply lift the little shut off arm on your icemaker and wait about an hour then go back to the icemaker and drop the arm down. The icemaker should start going through a cycle. You should notice the arm slowly begin to raise and the ice dispencer fingers will begin to turn. Then you will hear it call for water. You may hear a humm.
If the freezer is cold enough and the icemaker is cycling that only leaves the inlet valve. replace the valve and enjoy the ice.
If the freezer is cold enought and the icemaker does not cycle, then you have a bad icemaker. Simply replace the icemaker and viola.
Third if the freezer is not cold enought 0 defrees. Then you may have a defrost problem. In this case post more info and I will be happy to help. Good luck [email protected]