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Onan HGJAB Service Manual

Onan HGJAB
139 pages
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iii
SECTION PAGE
11. TROUBLESHOOTING 11-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Codes 11-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Genset Starts or Stops Without Command – No Fault Code 11-2. . . . . . . . . . . . . . . .
No Response – Status Indicator Light Dead 11-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Batteries Run Down 11-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Engages – Disengages 11-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
No AC Power – Genset Running, Status LED On Steady or Flashing Rapidly 11-4.
Genset Cranks But Does Not Start – No Fault Code 11-5. . . . . . . . . . . . . . . . . . . . . . .
Genset Runs But Stops When Switch Is Released – No Fault Code 11-5. . . . . . . . .
Low Oil Pressure Fault – Fault Code 2 11-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Check Fault – Fault Code 3 11-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overcrank – Fault Code 4 11-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overvoltage – Fault Code 12 11-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Undervoltage – Fault Code 13 11-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overfrequency – Fault Code 14 11-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Underfrequency – Fault Code 15 11-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Pump Fault – Fault Code 17 11-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Governor Actuator (EFI Only) – Fault Code 19 11-14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Governor Actuator Overload (EFI Only) – Fault Code 22 11-15. . . . . . . . . . . . . . . . . . .
Oil Pressure Switch Fault – Fault Code 23 11-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Sense Lost – Fault Code 27 11-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Battery Voltage – Fault Code 29 11-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overspeed Fault (HGJAD, E, F Models Only) – Fault Code 31 11-19. . . . . . . . . . . . . .
Low Cranking Speed Sense – Fault Code 32 11-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Code 33 – Fault Code 33 11-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Card Failure – Fault Code 35 11-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Genset Stopped Without Fault Condition – Fault Code 36 11-23. . . . . . . . . . . . . . . . . .
Invalid Set Configuration – Fault Code 37 11-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Field Overload (Overvoltage) – Fault Code 38 11-26. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents

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Onan HGJAB Specifications

General IconGeneral
Fuel TypeGasoline
Power Output5500 Watts
Voltage120/240V
StartingElectric
Engine TypeOHV
Noise Level68 dB
Outlet Types1 x 120/240V 30A Locking

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