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Sub-Zero Temperature Zones


  • How many temperature zones does a Sub-Zero unit have?
  • Can a temperature zone be changed from refrigerator to freezer?
  • Can two different temperatures be set for two drawers?
  • What does the battery icon mean on Designer units?
  • Why is there an icon of a refrigerator with the freezer or refrigerator section blacked out?


Temperature zones cannot be converted from refrigerator to freezer or vice versa.

Designer (DET, DEC, and IT, IC, ID) units have icons under the degree symbol to indicate which temperature applies to which zone.

  • The icon is sometimes mistaken for a battery symbol.
  • In the image below, the left icon is for the lower temperature zone (freezer) and the right is for the upper temperature zone (refrigerator).
  • Designer Wine Storage units are the same, but the colors are reversed. Left icon is for the lower temperature zone, and the right is for the upper temperature zone.

Number of temperature zones per product:

Model StyleTemperature Zones
All Refrigerator1
All Freezer1
Combination Units2
Wine Storage2
Model 427R3
Model IW-30R3
Model IW-30CI4
Model 315W1
Model 700TR-13
Model 700TR-2 and 700TR-32
Model 648PRO3
Model PRO 483
Model PRO 363

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


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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