Sub-Zero with "Vacuum Condenser" Flashing


  • Excessive compressor run
  • Possible cooling issue

Core Issue:

  • Vacuum Condenser flashing on display of 600 Series prior to serial number 1810000
  • Error code Vacuum Condenser flashing
  • How to clear or reset Vacuum Condenser flashing
  • Vacuum Condenser continues to return

Steps to Verify Issue:

  1. If temperatures are high, call for service.
  2. If temperatures are near normal, turn off the unit and Clean the Condenser.
  3. Verify nothing is obstructing the door from closing. See Door Closing Troubleshooting.
  4. Turn the unit back on. This resets the message and it should no longer appear.
  5. See also:


If Vacuum Condenser returns, or temperatures rise, no further troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.

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