Sub-Zero Classic BI Code 30-8-00: Ice accessories open circuit

What 30-8-00 means

Older Sub-Zero Classic built-ins like the BI-36U/S and BI-36UFD/S use 30-8-00 to report that the ice maker accessories circuit is open. The control tried to read the ice maker and its related accessory loads and found no continuous path, as if a plug were disconnected or a wire broken. The refrigerator and freezer usually keep cooling normally, but ice production slows or stops, and the bin can stay empty even with the water supply on.

Common causes of 30-8-00

Ice maker harness unplugged or loose inside the freezer
Broken wire in the accessory circuit
Ice maker unit not responding on its circuit

✓ One safe check you can try

1. Make sure the ice maker on/off control is set to on. 2. Check that the bin is seated fully and nothing is jammed around the ice maker. 3. Confirm the household water valve feeding the unit is open. 4. Leave the freezer running; cooling is not affected by this code.

! Why to stop there

The ice maker connector sits behind the unit's interior trim.
An open circuit has to be traced with a meter to find the break.
Forcing the ice maker out can crack the mounting tabs.

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.

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Other Refrigerator codes

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30-8-0030-8-00 questions

Does 30-8-00 affect cooling?

No. It concerns the ice maker accessories circuit only. Your food stays cold, and you can buy bagged ice while you wait for us to trace the open connection.

Could a loose bin cause this code?

A bin that is not seated may stop ice making, but 30-8-00 specifically reports an open electrical circuit. We check the plug and harness first because that is where the break most often sits.

Is this an expensive repair?

Often it is a connector or wiring repair. If the ice maker itself must be replaced, we tell you before starting with a written price. Our 30-day workmanship warranty covers the repair.