Onan generator · 3 model lines
Onan generator code 47: Ignition
Onan documentation for 3 model lines lists 47 as “Ignition”.
Check your model first. The same code can mean different things on different models. Find the model number on the appliance's data label, then use the matching row below.
What code 47 means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| HGJAA / HGJAB / HGJAC and HGJBB operator manuals | The Cummins Onan operator manual lists Code 47 as Ignition. | Cummins Onan RV Generator Manuals Cummins Onan Generator Set for RV Operator Manual A031C171 Cummins Onan Generator Set for RV Operator Manual A035D009 Cummins Onan RV Generator Set HGJAA/HGJAB/HGJAC Spec A-E Operator Manual 983-0101 |
| QG 4000 / 3600 LP KY (Spec J-R) | The Cummins Onan QG 4000/3600 LP KY operator manuals list Code 47 as Ignition. | Cummins Onan RV Generator Manuals Cummins Onan QG 4000/3600 LP KY Spec J-N Operator Manual 981-0159 Cummins Onan QG 4000/3600 LP KY Spec P-R Operator Manual A041D131 |
| QG 4000 / 3600 LP KYD (Spec A-C) | The Cummins Onan QG 4000/3600 LP KYD operator manual lists Code 47 as Ignition. | Cummins Onan RV Generator Manuals Cummins Onan QG 4000/3600 LP KYD Spec A-C Operator Manual 981-0169 |
What you can safely check
- Turn the generator off.
- Avoid repeated start attempts after an ignition fault.
- Stop the generator.
- Record the fault code, model/spec, hour meter, load, fuel state, and weather for Cummins service.
- Stop repeated start attempts if ignition fault repeats.
Stop and call a technician for
- Internal generator electrical output, inverter, controller, sensors, fuel system, ignition, AC circuit, and engine diagnosis belongs to Cummins service or a qualified generator technician.
Generators can produce carbon monoxide, hot surfaces, fuel hazards, moving-part hazards, and lethal voltage. Shut the generator down and do not open energized compartments unless qualified.
Write this down before you call
- generator model/spec letter
- hour meter
- fault blink count
- loads running when the shutdown occurred
Other codes on Cummins Onan QG gasoline generators (HGJAA, HGJAB, HGJBB)
Full table: Cummins Onan QG gasoline generators (HGJAA, HGJAB, HGJBB)
- 2 Low Oil Pressure
- 3 Service Check
- 4 Over Crank
- 12 Over Voltage
- 13 Under Voltage
- 14 Over Frequency
- 15 Under Frequency
- 19 Governor Actuator
- 22 Governor Actuator Overload
- 23 Low Oil Pressure Cutoff Switch
- 27 Voltage Sense
- 29 High Battery Voltage
- 31 Over Speed
- 32 Low Cranking Speed
- 35 Control Card Failure
- 36 Engine Stopped
- 37 Invalid Generator Set Configuration
- 38 Over Current (Field Overload)
- 41 Generator Rotor
- 42 Processor
- 43 Processor
- 45 Speed Sense
- 48 Generator Field Sense
- 51 Processor
- 52 Fuel Injector
- 54 MAT Sender
- 56 MAP Sender
- 57 Over Prime
- 58 Exhaust Gas Temperature Shutdown
- 81 Exhaust Gas Temperature Sensor Open
- 82 Exhaust Gas Temperature Sensor Shorted
Other codes on Cummins Onan QG 4000 / 3600 LP generators
Full table: Cummins Onan QG 4000 / 3600 LP generators
- 3 Service Check
- 4 Over Crank / Overcrank
- 12 Over Voltage / Overvoltage
- 13 Under Voltage / Undervoltage
- 14 Over Frequency / Overfrequency
- 15 Under Frequency / Underfrequency
- 27 Voltage Sense
- 29 High Battery Voltage
- 32 Low Cranking Speed
- 35 Control Card Failure
- 36 Engine Stopped
- 37 Invalid Generator Set Configuration / Invalid Genset Configuration
- 38 Over Current (Field Overload) / Overcurrent
- 41 Generator Rotor
- 42 Processor
- 43 Processor
- 45 Speed Sense
- 48 Generator Field Sense
Related troubleshooting guides
Official sources
OnanCummins Onan RV Generator ManualsOnanCummins Onan Generator Set for RV Operator Manual A031C171OnanCummins Onan Generator Set for RV Operator Manual A035D009OnanCummins Onan RV Generator Set HGJAA/HGJAB/HGJAC Spec A-E Operator Manual 983-0101OnanCummins Onan QG 4000/3600 LP KY Spec J-N Operator Manual 981-0159OnanCummins Onan QG 4000/3600 LP KY Spec P-R Operator Manual A041D131OnanCummins Onan QG 4000/3600 LP KYD Spec A-C Operator Manual 981-0169