Product Manual

6. Troubleshooting 8-2019
88 A062J680 (Issue 2)Copyright © 2019 Cummins Inc.
Wire connections
Corrective Action:
1. Have the unit serviced by an authorized Cummins dealer.
Code 13 - Undervoltage
Possible Causes:
Generator set loads
Wire connections
Windings
Corrective Action:
1. Have the unit serviced by an authorized Cummins dealer.
Code 14 - Overfrequency
Possible Causes:
Air fuel mixture
Alternator windings
Carburetor
Demand regulator
Engine governor function
Exhaust system
Fuel supply
Generator set loads
Wire connections
Diagnosis and Repair:
1. Have the unit serviced by an authorized Cummins dealer.
Code 15 - Underfrequency
Possible Causes:
Air fuel mixture
Carburetor
Demand regulator
Engine governor function
Exhaust system
Fuel supply
Generator set loads
Generator windings