When encountering a water dispenser issue in a Samsung refrigerator, start by checking a few key elements. Ensure the water supply is connected and turned on. Confirm that the water filter is correctly installed and not clogged; replacing the filter can sometimes resolve the problem. Inspect the water line for any kinks or blockages that might impede water flow. Additionally, checking the dispenser control lock is essential, as it might be inadvertently activated, preventing water flow. If these steps don’t resolve the issue, it might be due to a faulty dispenser switch, valve, or other internal components, requiring professional inspection or replacement to restore proper functionality.