If you’re having issues with food that’s too warm or too cold, the first step is to make sure you’ve set the best temperature for your Sub-Zero Refrigerator.
Finding that perfect temperature can be frustrating. Problems with food freezing in the refrigerator or food not freezing enough in the freezer can be the result of improper temperature settings. In general, the ideal temperature setting for a refrigerator is between 35-38 degrees Fahrenheit and 0 degrees for the freezer.
What is The Best Temperature for a Sub-Zero Refrigerator?
We know that finding the right setting for your refrigerator and freezer is difficult, so we’ve compiled this easy-to-use guide for you.
What is the Ideal Temperature in a Sub-Zero Freezer & Refrigerator?
The best temperature for your Sub-Zero refrigerator is 38 degrees Fahrenheit and the freezer should be set to 0 degrees.
However, fluctuations between -/+ 5 degrees are normal. Humidity within the refrigerator can cause some minor variations. An open door will allow cold air to escape and will create a temporary drop in temperature. Even the external room temperature causes small fluctuations in temperature in your refrigerator and freezer.
However, if you notice temperature changes more significant than +/- 5 degrees, you should call Don Bacon Appliance to have your Sub-Zero refrigerator serviced.
How do I Measure the Temperature in My Sub-Zero Refrigerator & Freezer?
It may be surprising, but measuring the air temperature of your refrigerator and freezer will not give you an accurate reading of the actual temperature. Food temperature is the best indicator for how well (or not so well) your unit is cooling.
To measure your refrigerator and freezer temperatures, you need the following supplies:
- 2 thermometers (any kind will do)
- Vegetable oil or similar
- 2 glasses or cups tall enough to fit your thermometers
Start by completely submerging a thermometer in a glass of water and placing it in the middle of the refrigerator. Do the same for the freezer, but instead of water, use a glass of oil.
Let the thermometers sit in the refrigerator and freezer for 12 hours. At 12 hours, check the temperatures on the thermometers. Now you have an accurate reading of your Sub-Zero freezer and refrigerator temperature settings.
Which Number Should I Set the Sub-Zero Refrigerator & Freezer Dials?
If your Sub-Zero refrigerator has an electric control panel, set the refrigerator temperature to 38 degrees and set the freezer to 0 degrees. The control panel allows the temperature to be set between 34 degrees and 45 degrees for the refrigerator and -5 degrees to 5 degrees in the freezer.
For Sub-Zero units with a dial instead of an electric control panel, the ideal setting is between 4 and 6.1.
In general, the temperature should not be anything above 45 degrees. Food stored at temperatures above this will spoil due to bacteria growth.
Note: A Sub-Zero refrigerator does not allow a set temperature above 45 degrees. Temperatures above this indicate an issue with your refrigerator, and it should be serviced.
How do I Change my Sub-Zero Temperature Settings?
Changing the temperature on your Sub-Zero refrigerator and freezer depends on the model. 400, 600, 700, Classic, Undercounter, or 648PRO units have an electric control panel in which you adjust the temperature.
Simply press the colder or warmer button to the ideal setting. Some control panels have a “zone” function. Press this key first, then adjust with the colder or warmer buttons.
200, 300, or 500 models feature a dial control instead of an electric control panel. To change the temperature on these Sub-Zero units, set the dial between 4 and 6.1. The higher the setting, the colder the temperature.
Once you change the setting, allow a full 24 hours for it to reach the new setting.
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