The part(s) or condition(s) listed below for the symptom Refrigerator ice and water dispenser not working are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
The door switch turns off the ice and water dispenser when the refrigerator door is open. If the door switch fails, the dispenser will not turn on. To determine if the door switch is defective, use a multimeter to test it for continuity. If the door switch does not have continuity when activated, replace it.
The main control board might be defective. However, the control board is rarely at fault for this problem. Before replacing the control board, first check all of the dispenser components. If none of the dispenser components are defective, consider replacing the main control board.