Model #GSH25JSTCSS---Not getting any water from the water dispenser but still have ice coming out---What's the problem?

I have this same model and problem. The water line may be frozen inside the freezer door. (the line enters at the bottom hinge area of the freezer door)

Shut the unit off and leave the freezer door open ( you will need to remove your stuff you want to save first)

Next disconnect the line coming out of the Freezer door near the bottom hinge (should be a quick disconnect coupler, you will need to remove the front air grill assy to allow access to the line/coupler) and lay the line out on the floor.

After thawing the water should run out the line leaving a small puddle on the floor. Reconnect the line, plug the unit back in and test your dispenser.

Although this method restored my water dispenser to working condition, other possible causes for this include the line freezing up in the refridgerator section, bad water valve, bad relay on the motherboard, that triggers the water valve, bad motherboard. Hope this helps.