FAIL-TO-SYNCHRONIZE

UnclassifiedStarting

What This Code Means

SYNC1320 master synchronizer does not start synchronizing

Possible Causes

  • Generator source is not available
  • Utility source is not available
  • SYNC1320 master synchronizer is not in Auto and is not in Manual with the sync enable switch on
  • The fail-to-synchronize fault is active
  • The fail-to-sync lockout is enabled
  • Generator and bus do not have the same phase rotation
  • Enabled sensors are not picked up

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for FAIL-TO-SYNCHRONIZE on your specific Cummins unit — cited to the OEM manual, not a forum guess.

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