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Sub-Zero Classic Series (BI) Control Panel Icons, Symbols, and Buttons



The following buttons and indicator lights are used in Sub-Zero Classic (BI) Series control panels:




Illuminates or flashes when:

  • Temperature problem
  • Ice maker problem
  • Condenser needs to be cleaned

See also, Clean the Condenser.

  • Illuminates when the air purification system is on.
  • Flashes when the cartridge needs replacing.
    • After replacing the cartridge, touch and hold PURE AIR on the control panel for 5 seconds to reset.

See also, Air Purification Filter Replacement.

Illuminates when the water filter needs replacing.
See also, Classic (Formerly Built-In) Water Filter Replacement Indicator On.
Illuminates when the ice maker system is on.
See also, Classic Series (BI) Ice Cube Flashing, No Alarm Chiming.
Illuminates when the Max Ice feature is on. 
See also, Classic (Formerly Built-In) Series MAX ICE Feature.
  • Illuminates when the door alarm is on. 
  • Flashes when the door alarm is on and the door is left ajar.
See also, Classic (Formerly Built-In) Door Ajar Alarm.
Illuminates when the accent lighting is on for glass door models.

The home icon appears when a Classic product connected with the Sub-Zero Group Owner's App runs a special mode like Night Ice Mode or Vacation Mode. The home icon turns off when the mode is turned off.


LightsTurns the interior accent lighting on or off for glass door models.
Ice Maker

Turns power to the ice maker on or off.

  • Use to disable the ice maker during extended vacations. 

See also, Turn Classic (Formerly Built-In) Series Ice Maker On or Off.

Max IceTurns the Max Ice feature on or off, which increases ice production 30% for a 24-hour period.

Adjusts the temperature in one-degree increments.

  • Combination units have separate temperature controls for the refrigerator and freezer.
  • Temperatures are preset at 38°F (3°C) and 0°F (-18°C).
Pure AirTurns the air purification system on or off. See also, Air Filter Operation.

Turns the door alarm on or off.

  • A chime indicates the door has been left ajar for more than 60 seconds. 

See also, Classic (Formerly Built-In) Door Ajar Alarm.


Turns the unit on or off.

  • When the power is off, “OFF” appears in the control panel display.
  • Turning the power off at the control panel eliminates the need to unplug or turn the power off at the circuit breaker during service or extended vacations.



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