Sub-Zero Classic BI Code 15-8-01: ice maker relay stuck closed

What 15-8-01 means

Classic Built-In units such as the BI-36UFD/S report 15-8-01 when the ice maker relay is stuck closed. That relay is supposed to switch the ice maker on and off, but now it feeds power constantly. Depending on where the ice maker is in its cycle, you may see it running nonstop, overfilling the bin, or acting erratically. The refrigerator and freezer themselves usually keep cooling normally while the code is set.

Common causes of 15-8-01

Relay contacts on the board stuck together
A board output that will not switch off
Shorted wiring that keeps the ice maker circuit live

✓ One safe check you can try

1. Turn the ice maker switch off or raise the shutoff arm. 2. Empty the bin if it is overfilling. 3. Wipe up any water or ice spilled in the freezer. 4. Reset the breaker once and see whether 15-8-01 returns.

! Why to stop there

Constant power can overheat the ice maker motor
Board relays need testing with the unit powered
The fix may involve a board replacement and programming

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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15-8-0115-8-01 questions

Can I keep using ice while 15-8-01 is on?

We suggest switching the ice maker off. A relay stuck closed keeps it powered and can cause overfilling or wear on the ice maker. The rest of the refrigerator is fine to use.

Is the ice maker broken?

Not necessarily. The problem is the relay feeding it. Once we fix that, we check that the ice maker still cycles normally before we leave.

What do you charge?

We diagnose first, then quote a written price that covers the board repair and any check of the ice maker. Labor carries a 30-day workmanship warranty.