Refrigerator and Freezer Temperature Settings


  • What temperature should a refrigerator or freezer be set at?
  • Number to set refrigerator or freezer to on the control dial
  • Best temperature to set Wine Storage unit to
  • Temperature range in freezer or refrigerator
  • Change temperature setting
  • Recommended temperatures


General Temperature Setting Information

  • In products with an electronic control panel, the refrigerator set to 38°F (3°C) and the freezer set to 0°F (-18°C) are ideal food storage temperatures.
  • Storing food above 45°F is not safe.
  • Always allow 24 hours for unit to reach new temperature setting.
  • If the unit will not maintain set temperature, refer to Warm Refrigerator Troubleshooting or Warm Freezer Troubleshooting for more information.
  • For units running too cold, verify the proper temperature units (°F or °C) appear. Refer to Extremely Cold Temperature on Display for instructions to change the display temperature units (°F or °C).

To change the units from Celsius to Fahrenheit or vice versa, see also:

Dial Controls

See How to Set a Dial Control Refrigerator or Freezer for instructions and recommendations.

Electronic Control Panel Display

The temperature range in a Sub-Zero with an electronic control panel is 34° - 45°F (1° - 7°C) degrees in the refrigerator and -5° to 5°F (-20° to -15°C) degrees in the freezer.

  • In units with an electronic control panel, the factory settings of 38°F (3°C) in a refrigerator and 0°F (-18°C) in a freezer are ideal food storage temperatures.
  • Wine Storage products have different temperature ranges to preserve wine, see Wine Storage Temperature Ranges.
  • Setting the temperature higher or lower than factory settings causes the unit to run more or less, according to set temperature.
  • It is not possible to set a temperature higher or lower than the range listed above.
  • If the control panel does not respond, refer to Sub-Zero Electronic Control Panel Non-Responsive for troubleshooting steps.

Adjust the Temperature

The steps to adjust the temperature vary depending on the product family.

400, 600, 700, Classic (formerly Built-In), UC Undercounter, UW and BW Wine Storage, and 648PRO

  1. Press the colder or warmer key for the desired refrigerator or freezer section.
    • Unit normally shows the actual temperature.
    • When the colder or warmer key is pressed, unit will show the set temperature.
  2. After setting to desired temperature, display will return to actual temperature after 3 seconds.
  3. The temperature change is not immediate. Allow 24 hours for the unit to reach the set temperature. An audible beep occurs during this operation.

Classic Control Panel:

UC Undercounter Control Panel:

UW and BW Wine Storage Control Panel:

648PRO Controls and Display:

PRO3650 Display:

Designer (formerly Integrated) Refrigeration and Designer Wine Storage

  1. Touch the temperature to adjust.
  2. Touch + to increase or - to decrease the temperature until the desired temperature displays. The product saves the settings after the controls are not touched for 3 seconds.

Designer Control Panel:

See also:

Refer to the product Use and Care Guide for further information.

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