Funny, I’m locked in hand to hand combat with my ice maker right now as well!
If the ice making unit is dry then you aren’t getting water from the water valve.
Test the ice maker water valve coil by putting a multi-meter on the terminals. You should get continuity through the coil. If not, water valve shot.
On SOME water valves, you can further test the coil by moving the water dispenser valve coil over to the ice maker valve. Then press the water dispenser button and you should get water to the ice maker if the coil is good. If no water, again valve is shot.
Also, verify that any sensor switches are working. Some unites have a “ice bin in place” switch that won’t let the ice maker make ice if the bin is taken out. Test switches.
So test the water valve first. If the water valve is bad, then it’s most likely the ice maker unit itself. Easy change out, but verify the valve first.
Grouse