Generac

2101

UnclassifiedElectrical

What This Code Means

Generator produces low voltage at no-load; Generator shuts down for overload; Generator shuts down for over voltage; Generator running underspeed for > 30 seconds when undervoltage alarm set; Single Zero Cross missing; Undervoltage due to faulty excitation winding, or zero cross circuit, or circuit in general; One zero cross missing for greater than 1.5 seconds; Field Current measured value is above threshold; The controller fuse is missing or damaged in such a way that it does not work; Fuse problem must be detected for 1.5 seconds; Command and position feedback not matching or taking too much time to achieve; Governor in open position for greater than one second; Governor in closed position (commanded otherwise) for greater than one second; Ground + Neutral Current is above threshold.; Generator Xfer Enabled Output has been mis-wired.; Incorrect DC AC wiring hook up.; Output current measured value is above threshold.; Field Current measured value is above threshold.; Current exceeds

Possible Causes

  • •governor wire loose
  • •governor module
  • •Fuel supply problem
  • •Shorted condition in a connected load
  • •Shorted condition in one of the load circuits
  • •Heavy capacitive load
  • •fuel supply/control system
  • •engine intake exhaust or mechanical issues
  • •field boost hardware failure
  • •overload
  • •Missing / Damaged Fuse
  • •faulty excitation winding
  • •zero cross circuit
  • •circuit in general
  • •Firmware older than V1.30
  • •Ground fault.
  • •Mismatched wiring on Wire 194 and Wire 23.
  • •Incorrect customer connection wiring.
  • •Overload condition.
  • •Over-current condition.

Suggested Actions

  1. 1Test 68
  2. 2Correct the fuel supply
  3. 3Open all load breakers and bring them on one at a time to determine which branch circuit is the cause of the problem.
  4. 4Procedure for Alarm E-Code 1905
  5. 5Procedure for Alarm E-Code 1916
  6. 6Remove Load
  7. 7Procedure for Alarm E-Code 2101
  8. 8Procedure for Alarm E-Code 2400
  9. 9Procedure for Alarm E-Code 2500
  10. 10Procedure for Alarm E-Code 2501
  11. 11Procedure for Alarm E-Code 2502
  12. 12Verify wiring on Wire 194 and Wire 23.
  13. 13Verify customer connection wiring.
  14. 14Test 28 – Test for an Overload Condition page 75
  15. 15Verify VCC settings.
  16. 16Contact Technical Support.
  17. 17Test 101 – Check for Short Circuits page 172

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