Sub-Zero Classic BI Code 30-U-10: Dispenser water valve open

What 30-U-10 means

Within the water system group on Classic BI models such as the BI-36UFD/S and BI-36U/S, the second device is the dispenser water valve, and 30-U-10 says its circuit is open. The ice maker may still fill if its own valve is fine, but pressing for water at the door gives nothing because the control cannot energize the dispenser valve. Cabinet cooling is unaffected.

Common causes of 30-U-10

Dispenser valve coil open
Loose or corroded valve connector
Damaged wire to the dispenser valve

✓ One safe check you can try

1. Check whether the ice maker still makes ice; tell us when you call. 2. Confirm the water filter is locked in. 3. Hold the dispenser lever for a few seconds to rule out an air pocket. 4. Use the keypad lock if needed and wait for service.

! Why to stop there

The valve is accessed from behind the lower grille.
We test coil resistance before replacing anything.
Reconnecting tubing needs leak checks under pressure.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Refrigerator codes

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30-U-1030-U-10 questions

Why do I still get ice but no water?

BI dispenser models use separate valve sections for ice and door water. 30-U-10 is limited to the dispenser water valve, so the ice maker can keep filling its tray normally.

Could the filter cause this?

A clogged filter slows flow but does not create an open circuit. This code is electrical, so changing the filter is fine if it is due, but it will not bring door water back.

What is the cost range?

It depends on whether the valve or a connector is the cause. We give a written price before work, and the repair includes our 30-day workmanship warranty.