Sub-Zero Refrigerator and Freezer Temperature Settings
- What temperature should a refrigerator or freezer be set at?
- How cold does the refrigerator or freezer get?
- 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 to Celsius or Fahrenheit
- Does the control panel show the actual temperature of the refrigerator and freezer?
- 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.
- For products with a numbered dial control, refer to How to Set a Dial Control Refrigerator or Freezer.
- 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, Warm Freezer Troubleshooting, or Sub-Zero Refrigerator or Freezer Too Cold 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).
- Refrigerators and Freezers:
- Wine Storage Units:
- App Temperature: Sub-Zero Temperature in Sub-Zero Group Owner's App
For series-specific instructions, see:
The temperature range in a Sub-Zero with an electronic control panel is 34° - 45°F (1° - 7°C) in the refrigerator and -5° to 5°F (-20° to -15°C) 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.
- The Designer Undercounter Beverage Center has different temperature ranges for a variety of beverages, see Designer Undercounter Beverage Center (DEU2450BG) 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.
- 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.
- After setting to desired temperature, display will return to actual temperature after 3 seconds.
- 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 (BI) Control Panel:
UC Undercounter Control Panel:
UW and BW Wine Storage Control Panel:
648PRO Controls and Display:
PRO3650 and PRO4850
- To adjust the temperature, touch the temperature shown next to the corresponding zone icon.
PRO3650 Control Panel:
Designer (IT, IC, ID) Refrigeration and Designer Wine Storage (IW)
- Touch the temperature to adjust.
- 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:
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