Hi!Actually, you have isolated the problem! Your excellent diagnose leads you to the water valve in the back of the refrigerator on the bottom. This is what allows the water to be sent to the ice maker. The only thing left is to listen for the hum of the valve. If you hear no hum when it is calling for water, then the valve is definitely bad. You will need to replace it.If you have any other questions, please ask them here. If not, then please click accept. Feedback is highly appreciated and lets me know how I am doing. Thank you!
HiCustomer Jesse is off line at the moment.
You can use a voltmeter to test the leads going to the solinoid where they connect to it. Just put one probe in each connector and have someone work the actuator. If you get voltage replace the solinoid. If not (not likely) then start tracing the wires and find the short or broken wire.
Jesses' answer is correct. Please be sure to accept his answer and not mine.