40 SDMO generator fault/alarm codes with symptom, cause and remedy — compiled from SDMO service and controller documentation.
| Code | Meaning / symptom | Cause | Remedy |
|---|---|---|---|
| 000 | The general fault LED will light up flashing and the following message will appear: 000 010 represents a fault code. Refer to the list of fault codes in Section 4.4. | ||
| 000970 | External Shutdown Switch Activated | Not Engine Fault. Check Other Shutdown Devices | |
| 000971 | External Fuel Derate Switch Active | Not Engine Fault. Check Other Shutdown Devices | |
| 001069 | Tire Size Invalid | Contact Servicing Dealer | |
| 001079 | Tire Size Error | Contact Servicing Dealer | |
| 001080 | Sensor Supply 1 Voltage High | Check Wiring | |
| 001109 | Engine Protection Shutdown Warning | Shut Down Engine, Check Diagnostic Trouble Codes | |
| 001110 | Engine Protection Shutdown Active | Shut Down Engine, Check Diagnostic Trouble Codes | |
| 001347 | High Pressure Fuel Pump Control Valve Signal Out of Range High | Contact Servicing Dealer | |
| 001568 | Requested Torque Curve Signal Unreliable | Contact Servicing Dealer | |
| 001569 | Engine in Derate Condition | Check Diagnostic Trouble Codes | |
| 002000 | Security Violation | Contact Servicing Dealer | |
| 005 | High Pressure Fuel Pump Solenoid Number 1 Circuit Has High Resistance | Check Pump Wiring | |
| 007 | High Pressure Fuel Pump Not Able to Meet Required Rail Pressure | Check Fuel Filter and Lines | |
| 1 | Speed reduced by 10% of nominal RPM | ||
| 2 | Overload by 20% of nominal rating | ||
| 3 | Power factor (cos ϕ) lower than the nominal-one | ||
| 4 | Ambient temperature above 50°C | ||
| 405 | Low fuel level alarm: Indicates the need to fill up with fuel. | ||
| 50-10 011813 PN=115 | Improper type of oil | Drain, fill crankcase with oil of proper viscosity and quality. | |
| 505 | An SOS message appears flashing with a fault code. | ||
| C203 | Overload or short-circuit fault (optional): with the circuit breaker SD contact closing (overload or short-circuit), the generating set switches off immediately also causing the main circuit breaker to be triggered. | ||
| C3... | Emergency stop or external emergency stop fault (see Section 3.4). | ||
| Differential fault | With a differential fault causing the activation of the differential relay, the generating set stops immediately also causing the main circuit breaker to be tripped. | ||
| Emergency stop | Emergency stop | ||
| Insulation fault | With an insulation fault causing the activation of the control unit performing insulation, the generating set stops immediately. | ||
| Low coolant level fault | Indicates that the level of coolant is low in the radiator (linked to a two second time delay). | ||
| Low fuel level | Low fuel level | ||
| Min/max alternator | Overspeed | ||
| Min/max battery voltage | Min/max battery voltage | ||
| No start-up | No start-up | ||
| O10 | The () LED lights up red and remains lit, the PAS 1: ashes and the following screen appears: 505 ririrt ul This screen displays the SOS message and the emergency stop fault code (also see section 4.4). | ||
| Oil pressure | Oil pressure | ||
| Overload or short-circuit fault | With the circuit breaker SD contact closing (overload or short-circuit), the generating set switches off immediately also causing the main circuit breaker to be triggered. | ||
| Overspeed | Overspeed | ||
| SOS | The general fault LED will light up flashing and the following message will appear: This screen displays the SOS message and the emergency stop fault code (also see section 4.4). | To restart, it is necessary to resolve the fault which has required the emergency stop button to be pressed, release the emergency stop button by turning it clockwise, and acknowledge (reset) the fault by moving the key switch to OFF, waiting for the 'ON' LED to go out completely and then moving the key switch to ON. | |
| STOP | Activated if the 'STOP' button is pressed whilst the 'AUT' LED is flashing to indicate that the generating set is operating in automatic mode. | ||
| Sa | Low fuel level fault: Indicates the need to top up the fuel. | ||
| Water temperature | Water temperature | ||
| rr | "STOP" fault activated if the "STOP" button is pressed whilst the "AUT" LED is flashing to indicate that the generating set is operating in automatic mode. |
Compiled from SDMO service manuals and controller documentation. Cause/remedy shown where extracted; always verify against the manual for your exact model.
External Shutdown Switch Activated. Remedy: Not Engine Fault. Check Other Shutdown Devices.
External Fuel Derate Switch Active. Remedy: Not Engine Fault. Check Other Shutdown Devices.
Tire Size Invalid. Remedy: Contact Servicing Dealer.
Tire Size Error. Remedy: Contact Servicing Dealer.
Sensor Supply 1 Voltage High. Remedy: Check Wiring.
Engine Protection Shutdown Warning. Remedy: Shut Down Engine, Check Diagnostic Trouble Codes.
Engine Protection Shutdown Active. Remedy: Shut Down Engine, Check Diagnostic Trouble Codes.
High Pressure Fuel Pump Control Valve Signal Out of Range High. Remedy: Contact Servicing Dealer.
Requested Torque Curve Signal Unreliable. Remedy: Contact Servicing Dealer.
Engine in Derate Condition. Remedy: Check Diagnostic Trouble Codes.
Security Violation. Remedy: Contact Servicing Dealer.
High Pressure Fuel Pump Solenoid Number 1 Circuit Has High Resistance. Remedy: Check Pump Wiring.
High Pressure Fuel Pump Not Able to Meet Required Rail Pressure. Remedy: Check Fuel Filter and Lines.
Improper type of oil. Remedy: Drain, fill crankcase with oil of proper viscosity and quality..