The PowerCommand 2.3 is a generator-set controller. It is used on generator sets from Cummins/Onan, including the 125, 450 DFEJ, 500 DFEK and 750 DQCB.
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| 101 | Engine continues to operate at reduced RPM. | Indicates that the engine is operating in idle mode. When the set is operating in the RUN mode, grounding the engine idle input causes generator build-up to be inhibited and the engine to be governed at 800 RPM. When ground is removed from this input, the set returns to normal speed and voltage. | |
| 102 | Engine shuts down and will not crank. | Indicates local or remote Emergency Stop. | To reset the local Emergency Stop button: Pull the button out or turn the switch clockwise (button with arrow) and allow it to pop out. Move the Run/Off/Auto switch to Off. Press the Reset switch. Select Run or Auto, as required. |
| 1123 | Shutdown After Battle Short | ||
| 1124 | Delayed Shutdown | ||
| 1131 | Battle Short Active | ||
| 121 | SPEED SIGNAL LOST | Indicates that no magnetic pickup pulses were sensed for a Loss of Speed delay. If a magnetic pickup is disabled, this fault is not activated. | |
| 121 | Speed Signal Lost | ||
| 1244 | Engine Normal Shutdown | ||
| 1245 | CAN - Engine Shutdown | ||
| 1246 | CAN - Unknown Engine Fault | ||
| 1247 | CAN - Engine Unannounced Fault | ||
| 1248 | CAN - Engine Warning Fault | ||
| 1311 | Customer Inputs #1 | ||
| 1312 | Customer Inputs #2 | ||
| 1317 | Customer Inputs #3 | ||
| 1318 | Customer Inputs #4 | ||
| 1334 | Crit Scaler OR | ||
| 1335 | Non-Crit Scaler OR | ||
| 135 | OIL PRESS SENSOR OOR HIGH | Indicates the oil pressure sensor output is out of range (OOR), high. | |
| 135 | Oil Pressure Sensor High | ||
| 141 | OIL PRESS SENSOR OOR LOW | Indicates the oil pressure sensor output is out of range (OOR), low. | |
| 141 | Oil Pressure Sensor Low | ||
| 1416 | Fail To Shut Down | ||
| 1416 | Fail to Shutdown | ||
| 1417 | Power Down Failure | ||
| 143 | PRE-LOW OIL PRESSURE | Indicates the engine oil pressure is approaching an unacceptable level. | |
| 143 | Pre-Low Oil Pressure Sensor | ||
| 1433 | Emergency Stop | ||
| 1434 | Remote Emergency Stop | ||
| 1435 | Low Coolant Temperature | ||
| 1437 | FAULT HISTORY: 1 OF 24 CNTL HOURS 459 OCCURRENCES 5 ENGINE HOURS 334 | ||
| 1438 | Fail to Crank | ||
| 144 | COOLANT SENSOR OOR LOW | Indicates the coolant temperature sensor output is out of range (OOR), low. | |
| 144 | Coolant Temperature Sensor High | ||
| 1442 | Weak Battery | ||
| 1443 | Battery Failed | ||
| 1444 | KW Overload | ||
| 1445 | Short Circuit | ||
| 1446 | High AC Voltage | ||
| 1447 | Low AC Voltage | ||
| 1448 | Under Frequency | ||
| 1449 | Over Frequency | ||
| 145 | COOLANT SENSOR OOR HIGH | Indicates the coolant temperature sensor output is out of range (OOR), high. | |
| 145 | Coolant Temperature Sensor Low | ||
| 146 | HIGH COOLANT TEMP WARNING | A. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. If engine can be stopped, follow 151 High Coolant Temp Alarm procedure. | |
| 146 | PRE-HIGH COOLANT TEMP | Indicates that the engine is operating near cooling system capacity. Increase in load or higher ambient temperature may cause High Coolant Temp (code 151) shutdown. | |
| 146 | Pre-High Cool Temp | ||
| 1461 | Loss of Field | ||
| 1466 | Modem Failure | ||
| 1468 | Network Error | ||
| 1469 | Speed/Hz Match | ||
| 1471 | Over Current | ||
| 1472 | Over Current | ||
| 151 | HIGH COOLANT TEMP | Indicates that the engine coolant temperature is above normal and has reached the Shutdown trip point. | |
| 151 | HIGH COOLANT TEMP ALARM | A. Check jacket water coolant level and replenish if low. Look for coolant leakage and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check fan belt and repair if necessary. d. Reset control and restart after locating and correcting problem. | |
| 151 | High Coolant Temp | ||
| 152 | LOW COOLANT TEMP | A. Coolant heater not connected to power supply. Check for blown fuse or disconnected heater cord and correct as required. b. Check for low jacket water coolant level and replenish if required. Look for possible coolant leakage points and repair as required. | |
| 153 | INTAKE MANIFOLD TEMP OOR HIGH | Indicates that the intake manifold temperature sensor is out of range (OOR), high. | |
| 154 | INTAKE MANIFOLD TEMP OOR LOW | Indicates that the intake manifold temperature sensor is out of range (OOR), low. | |
| 155 | INTAKE MANIFOLD TEMP HIGH | Indicates that the intake manifold temperature sensor is above normal and has reached |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.