If your refrigerator ice dispenser not working, start with the simplest and most likely causes: inspect the dispenser door for broken or misaligned parts that keep it from opening and releasing cubes. If the whole dispenser system is dead, a faulty dispenser control board or the refrigerator main control board can stop power to the system, but if only the dispenser is affected it is more likely a single component failure such as a bad dispenser switch — test switches with a multimeter for continuity. Listen when you change from cubed to crushed; no clunk often points to a bad crushed/cubed ice solenoid. Also check the ice chute for jams caused by clumped cubes and run warm water to clear obstructions. These checks cover the most common reasons a refrigerator not dispensing ice or ice dispenser not dispensing ice. If you find a failed part, enter your model number on RepairClinic.com to see the exact replacement part and repair instructions for your refrigerator.
01 - Universal Refrigerator Dispenser Door
The dispenser door is opened by a motor or a solenoid to dispense the ice, but if the door is broken, it may not open properly in order to release the ice. You should inspect the dispenser door for damage to determine if the component should be replaced. You may have to remove the dispenser control panel or frame to access and inspect the dispenser door.
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02 - Universal Refrigerator Dispenser Control Board
The dispenser control board governs most of the functions of the dispenser system. If the control board is faulty, it may stop supplying power to the entire dispenser system. If only one dispenser part is not working, test each of the dispenser components before testing the control board. It is more likely that a single part has failed. If the entire dispenser system is not working, the control board is more likely to be at fault.
The dispenser switches send voltage to the dispenser. If one of the dispenser switches is defective, the dispenser will not work. To determine if a dispenser switch is defective, use a multimeter to test each switch for continuity. If a dispenser switch does not have continuity, replace it.
The crushed/cubed ice solenoid is the component that opens and closes a door in the ice bucket auger housing to allow the fully formed ice cubes to pass through or to divert the cubes through a crushing blade system to crush the ice when that option is chosen. If you don't hear a "clunk" sound when switching between the "Crushed" and "Cubed" ice options, it's likely the crushed/cubed ice solenoid is defective. You can use a multimeter to test the solenoid for continuity, a continuous electrical path present in the component. If the solenoid has no continuity, the component is faulty and will need to be replaced.
A refrigerator's main control board governs most of the functions of the appliance including the dispenser system. If the control board is faulty, it may stop supplying power to the entire dispenser system. If only one dispenser part is not working, test each of the dispenser components before testing the control board. It is more likely that a single part has failed. If the entire dispenser system is not working, the main control board is more likely to be at fault.