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Sub Zero Refrigerator ice dispenser not working

If your Sub Zero refrigerator ice dispenser not working, start with the simplest, most likely causes: inspect the dispenser door for damage or a stuck latch since a broken or misaligned door often blocks ice from dropping. If the door and linkage look fine, check the dispenser control board and the refrigerator main control board next, because a failed board can kill power to the whole dispenser system. If only part of the dispenser fails, the dispenser switches are a common single-part culprit and can be tested for continuity with a multimeter. Listen for the “clunk” when switching between crushed and cubed modes; if you do not hear it the crushed/cubed ice solenoid may be bad. Don’t forget the simple jams: clumped cubes can block the ice chute and are usually cleared by running warm water down the chute or manually removing the obstruction. You can find the exact replacement dispenser door, switch, solenoid, or control board for your model by entering your model number on RepairClinic.com.

01 - Sub Zero 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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Top Solution

02 - Sub Zero 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.
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Highly Likely

03 - Sub Zero Refrigerator Dispenser Switch

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.
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Highly Likely

04 - Sub Zero Refrigerator Crushed/Cubed Ice Solenoid

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.
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Common

05 - Sub Zero Refrigerator Main Control Board

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.
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Common

06 - Ice chute jammed

The ice chute may be jammed by clumps of cubes frozen together. You can run warm water through the chute to help remove the obstruction.
Common

Frequently Asked Questions

My refrigerator ice dispenser is not working. What should I check first?
Ice dispenser not dispensing ice even though the freezer makes ice. How do I clear a jammed ice chute?
Ice maker not making ice and dispenser not working. How do I tell if the ice maker, water valve, or control board is to blame?
How do I test the dispenser switch, solenoid, or control board?
How do I enter my model number or part number on RepairClinic.com to find the right replacement part?

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