Answer:

Reset a Sub-Zero:

To reset a Sub-Zero, the product must be power cycled:

1. Turn the unit off at the control panel.
   • For units with a dial control, turn the knob to zero (0) or off.
2. Turn the home circuit breaker to the unit off for 30 seconds and back on again. Retest the unit operation.

Error Codes

If an error code is present, first use the Ask Your Question field to search for the specific error code shown. More relevant troubleshooting information may be available. 

Sub-Zero Controls

Refer to your product model for control panel information. 

• Sub-Zero Classic Series (BI) Control Panel Icons, Symbols, and Buttons
• Legacy Designer Series Control Panel Icons, Symbols, and Buttons
  
• Sub-Zero Control Panel Does Not Work
  
• Sub-Zero Control Display Is Dark
• Turn Sub-Zero Ice Maker On or Off
• Sub-Zero Light Terminators if the door was left open for an extended period of time. 

Temperature Settings and Controls Information

• Sub-Zero Refrigerator and Freezer Temperature Settings
• Sub-Zero Refrigerator or Freezer How to Set Temperature for Dial Control
• Sub-Zero Model with Erratic Temperatures on Refrigeration Display

Additional Resources

• Sub-Zero Classic Series Service Icon Flashing and Alarm Chiming
• Sub-Zero Running in Cold Temperatures
• Sub-Zero Running in Warm Temperatures
• Sub-Zero Shuts Off by Itself
• Sub-Zero Does Not Turn On
• Sub-Zero Ice Maker Does Not Make Ice

If these troubleshooting steps do not resolve the issue, service is necessary to expertly diagnose and repair the product. Contact Factory Certified Service to schedule an appointment for repair.