The first thing I would do is remove the cover from the ice maker and increase the water fill amount by turning the adjustment screw CCW for about 180°.
If it would not help, then check for 120V coming to the water valve when the ice maker calls for water (the ejector blades are in 11:00 o'clock position). The power should present for about 7.5 to 9 seconds.
Do not rotate the blades or the drive gear manually - it will damage the ice maker. If you need to advance the ice maker into the cycle, use a jumper (insulated piece of wire at least 14GA) to short the test points T & H. The shut-off arm must be in "on" position.
If there is no power, then the problem is the wiring or the ice maker itself.
If there is power, then the problem is the water inlet valve.
Post the results, please.
- The part number for the water inlet valve is
AP3085178
- The part number for the replacement ice maker is
AP2984633
- Here are the break down diagrams for the Whirlpool refrigerator
Model ED22PQXDW02
Gene.