Check if your ice maker is clean inside. Something may be blocking the dispenser or a large amount of ice left. Remove the ice build up with a non-sharp object so as not to damage the compartment. It may prevent the device from working properly.
Inspect the water supply. It must be connected. Turn off the ice maker if you need to stop the water supply. This will fix future problems.
Check the system for other faults with “System Check”. If the above methods do not help, you may need to replace the ice maker unit.