I will be happy to help you out. Can I get the model number to your fridge?
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It is possible that the water valve has gone bad. This valve runs off 120vac. If you have a way to hook up voltage to the valve this will tell you if the valve is bad. Hook power up to it and water should go to the icemaker. If you hook 120 volts to the valve and no water, bad valve.
Being that you already replaced the icemaker, we can eliminate this as being bad. If the valve is good, check for burnt wire ends or loose connections. If that all looks good, then the problem lies in the control board on the back of the fridge.
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