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HomeRepair HelpSub Zero Refrigerator RepairSub Zero Refrigerator ice and water dispenser not working Repair

Sub Zero Refrigerator ice and water dispenser not working

If your Sub Zero ice and water dispenser is dead, start with the parts that most oftenfail: the dispenser actuator, which physically trips the switch, then the dispenser control board if the whole system is silent. Next check individual dispenser switches with a multimeter, and don’t forget the door switch that disables the dispenser when the door is open. Also confirm drawers, ice buckets and doors are fully closed and the gasket seals properly, since misaligned or open doors will prevent dispensing. Finally inspect the water filter housing and fittings for damage or improper seating that can block flow. Whether the water dispenser is not working, the ice dispenser not working, or your refrigerator dispenser is not dispensing water, these checks will narrow the fault and point to the replacement part you need. If you need parts, enter your model number on RepairClinic.com to see exact-fit dispenser actuators, control boards, switches, housings and other components, plus step-by-step repair guidance so you can fix it yourself with confidence.

01 - Sub Zero Refrigerator Dispenser Actuator

The dispenser actuator is the component that activates the switch or switches to send voltage to the dispenser. If the dispenser actuator is damaged, it may be unable to activate the switch. Inspect the dispenser actuator for any damage and replace with a new one if necessary.
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02 - Sub Zero Refrigerator Dispenser Control Board

The dispenser control board governs most of the functions of the dispenser system. If only one dispenser part is not working, it is probable that an individual part has failed. In this case, test each of the dispenser components before testing the control board. If the entire dispenser system is not working, the control board is more likely to be at fault.
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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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04 - Sub Zero Refrigerator Door Switch

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.
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05 - Doors not closing properly

Check to make sure all drawers and ice buckets are pushed in properly. Be sure the refrigerator doors are completely closed. There should be no visible gap around the door gasket.
Highly Likely

06 - Sub Zero Refrigerator Water Filter Housing

On many refrigerators, the incoming water will pass through a water filter before reaching the dispenser or the ice maker fill tube. If the water filter housing is damaged, water may not flow through the housing when the filter is installed. Inspect the water filter housing for damage and confirm it is properly seated. If necessary replace the damaged housing with a new one.
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Common

Frequently Asked Questions

Refrigerator water dispenser not working: what should I check first?
Ice maker not making ice or ice dispenser not dispensing ice: could the control board be bad?
Fridge not dispensing water while freezer and ice seem fine: could doors not closing be the issue?
How do I test dispenser switches and the door switch with a multimeter?
How do I enter my model number or part number on RepairClinic.com to find the right replacement part?

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