No water getting to ice maker

The water inlet valve is the control device that allows water to enter the ice maker. It is energized during the last 5-8 seconds of the harvest cycle. During this 5 to 8 second period, there should be 110v across the two wires connected to the valve . If there is power supplied to the valve and the valve does not open to allow water to flow, the valve is defective.

However, if power is being supplied to the valve and water will flow through it freely, it could be that the water supply line or inlet tube have frozen solid.  These lines can be thawed with warm water or a hair dryer.

Link: