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Sub-Zero Classic Series (BI) Initial Power-Up Procedure


  • Why do the lights flicker after a new Classic (BI) unit is powered on for the first time?
  • Why did a new BI turn off on its own after the unit was turned on for the first time?
  • Why does the model number appear on the LCD when a BI is turned on?
  • Is it normal for a BI to shut down after it is turned on for the first time?


All Classic series (BI) units are shipped in OFF mode.

  • When electricity is supplied to the unit for the first time by pressing the POWER key, a short diagnostics test is initiated.
  • During this test, the unit will power on, display "-- --" (double dashes) followed by the product model number, then power off.
  • This is normal operation.
  • Press the POWER key an additional time, and the unit will power on normally.

See also, Classic Series (BI) Showroom Mode Information.

If these steps do not resolve the issue, no further troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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