Fault (RDC2) | Fault (OnCuer | Condition | Check |
| Plus) |
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Frequency High | High Frequency | Governed frequency exceeds 110% of the | Contact an authorized |
Shutdwn |
| system’s frequency setpoint for more than 10 | distributor/dealer for service. |
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| seconds. Function becomes active 10 |
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| seconds after engine start (10 second inhibit). |
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Frequency Low | Low Frequency | Governed frequency falls below 90% of the | Reduce the load by turning off |
Shutdwn |
| system frequency setting for more than | appliances and restart the generator |
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| 10 seconds, or 1 Hz below the system | set. |
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| frequency setting for more than 60 seconds. | Contact an authorized |
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| Function becomes active 10 seconds after | distributor/dealer for service. |
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| engine start (10 second inhibit). |
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Genset S/N | Unavailable | Generator set serial number is unavailable. | Contact an authorized |
Unaval Warning | Genset Serial |
| distributor/dealer for service. See |
| Number |
| section 3.11. |
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IAT High 1 | Iat Higher | Engine manifold air temperature is too high. | Contact an authorized |
Warning | Than |
| distributor/dealer for service and |
| Expected 1 |
| provide the fault code. |
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IAT Volt Hi | Iat High | The ECM reported an Engine Air | Contact an authorized |
Warning | Voltage | Temperature/Manifold Absolute Pressure | distributor/dealer for service and |
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| Sensor (TMAP) error. | provide the fault code. |
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IAT Volt Lo | Iat Low | The ECM reported an Engine Air | Contact an authorized |
Warning | Voltage | Temperature/Manifold Absolute Pressure | distributor/dealer for service and |
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| Sensor (TMAP) error. | provide the fault code. |
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Invalid Csum | Flash Csum | An ECM error occurred. | Contact an authorized |
Warning | Invalid |
| distributor/dealer for service and |
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| provide the fault code. |
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Lo Crank Vlt | Low Cranking | Low cranking voltage. Battery voltage falls | Charge or replace the battery. |
Warning | Voltage | below 60% of system battery voltage for more |
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| than 6 seconds while the starter is engaged. |
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Locked Rotor | Locked Rotor | No engine rotation is sensed during cranking. | Check the battery. |
Shutdwn |
| Shuts down 3 seconds after the fault is | Check for loose connections. |
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| detected. | |
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| Check for obstruction of alternator or | |
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| engine. |
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| Contact an authorized |
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| distributor/dealer for service. |
MainPwrOverL | Main Power | Main power overload. An over current fault on | Check for shorted run relay. Check |
Shutdwn | Overload | the 70 controller power output (short circuit). | wiring for short circuits. |
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| Contact an authorized |
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| distributor/dealer for service. |
Maint Req’d | Maintenance | Engine maintenance is due. | Check the maintenance schedule in |
Warning | Required |
| the operation manual for tasks such |
| Warning |
| as changing the oil, spark plugs or the |
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| air filter. |
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Not in Auto | Not In Auto | The generator set is not in Automatic | Press AUTO to place the generator |
Warning |
| (standby) mode. Remote start and stop | set in Automatic mode, when |
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| commands from a transfer switch or remote | appropriate. |
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| switch will be ignored. |
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Oil Pres Low | Low Oil | The engine ECM indicates low oil pressure. | Check for leaks in the lubrication |
Shutdwn | Pressure | Note: The low oil pressure shutdown does not | system. |
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| protect against low oil level. Check the engine | Check the oil level and add oil if the |
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| oil level regularly as recommended in | level is low. |
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| Section 4. | Check the oil pressure switch and |
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| wiring. |
Section 2 Generator Set Operation 25 |