Hi there,
Here are links to help you with the water dispenser and ice maker. Please watch the full video, follow the steps, and click the hyperlinks for further assistance.
Samsung refrigerator water dispenser issues.
https://www.samsung.com/us/support/troubleshooting/TSG01001875/#water-does-not-dispense-at-all
Ice maker is not working.
https://www.samsung.com/us/support/troubleshooting/TSG01001012/#samsung-ice-maker-is-not-making-any-ice
Have a great day.
^Aloe