Specifications
| Controller | PowerCommand 2100 |
|---|---|
| Oil capacity | 84.0 L |
| Voltage options | 24 V |
| Battery group | Four, 12 Volt |
| Battery cranking | 1400 CCA |
| Battery voltage | 24 Volts DC V |
| Battery quantity | 4 |
| Fuel tank | 167.5 L |
Maintenance & consumables
for the Cummins/Onan VTA28| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | — | find | |||
| Oil filter | — | find | |||
| Belt | — | find | |||
| Coolant filter | — | find | |||
| Oil | — |
Common questions
What engine does the Cummins/Onan DFGB use?
The Cummins/Onan DFGB is powered by the Cummins/Onan VTA28 engine.
What is the oil capacity of the Cummins/Onan DFGB?
The Cummins/Onan VTA28 engine in the Cummins/Onan DFGB has an oil capacity of 84.0 liters.
Troubleshooting
62Fault codes
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| 1131 | Battle Short Active. | This feature must only be used during supervised, temporary operation of the genset. The faults that are overridden during Battle Short mode consist of faults that can affect genset performance or cause permanent engine, alternator, or connected equipment damage. | |
| 1416 | Fail To Shut Down is displayed. | The Fault Acknowledgement/Reset button will clear the fault message, but will remain in the Fault/History file with an asterisk sign (* equals active fault) as long as Battle Short mode is enabled. | |
| 1123 | Shutdown After Battle Short will be displayed for this type of shutdown. | Battle Short is suspended and a shutdown occurs immediately if any of the following critical shutdown faults occur: Overspeed − Fault code 234, Emergency Stop − Fault code 1433, Remote Emergency Stop − Fault code 1434, Speed Signal Lost − Fault code 121, Excitation Fault − Fault code 2335. Moving the customer installed Battle Short switch to OFF with an active but overridden shutdown fault or a shutdown fault that was overridden at any time. | |
| 401 | The generator set does not start. | Possible causes include: low fuel level, faulty starter motor, or a malfunctioning ignition system. | Check the fuel level and refill if necessary. Test the starter motor for functionality. Inspect the ignition system for any issues. |
| 402 | The generator set produces low voltage output. | Possible causes include: dirty or clogged air filter, malfunctioning alternator, or a faulty voltage regulator. | Clean the air filter and check for any blockages. Inspect the alternator for signs of damage or wear. Test the voltage regulator to ensure it is functioning correctly. |
| 403 | The generator set produces high temperature warnings. | Possible causes include: insufficient coolant, malfunctioning thermostat, or a clogged radiator. | Check the coolant level and top up if necessary. Inspect the thermostat for any signs of failure. Clean the radiator to ensure proper airflow. |
| 121 | Speed Signal Lost | ||
| 135 | Oil Pressure Sensor High | ||
| 141 | Oil Pressure Sensor Low | ||
| 143 | Pre-Low Oil Pressure Sensor | ||
| 144 | Coolant Temperature Sensor High | ||
| 145 | Coolant Temperature Sensor Low | ||
| 146 | Pre-High Cool Temp | ||
| 151 | High Coolant Temp | ||
| 197 | Low Coolant Level | ||
| 234 | Overspeed | ||
| 235 | Low Coolant Level | ||
| 359 | Fail to Start | ||
| 415 | Low Oil Pressure | ||
| 441 | Low Battery Voltage | ||
| 442 | High Battery Voltage | ||
| 1124 | Delayed Shutdown | ||
| 1244 | Engine Normal Shutdown | ||
| 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 | ||
| 1417 | Power Down Failure | ||
| 1433 | Emergency Stop | ||
| 1434 | Remote Emergency Stop | ||
| 1435 | Low Coolant Temperature | ||
| 1438 | Fail to Crank | ||
| 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 | ||
| 1461 | Loss of Field | ||
| 1466 | Modem Failure | ||
| 1468 | Network Error | ||
| 1469 | Speed/Hz Match | ||
| 1471 | Over Current | ||
| 1472 | Over Current | ||
| 2335 | Excitation Fault | ||
| 2336 | Memory Error | ||
| 2341 | High Control Temperature | ||
| 2342 | Too Long in Idle | ||
| 2967 | Governor Fault | ||
| 2968 | AVR Fault | ||
| 2969 | LON Failure | ||
| 2972 | Field Overload |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Make sure the fuel tanks have sufficient fuel and that fuel system is primed. | Check to make sure there are no leaks and that all fittings are tight. | |
| Make sure the generator set cooling inlet/outlet and exhaust ventilation openings are clear (not blocked) and operational. | Remove all loose debris from surrounding area of generator set. Air flow from the radiator fan can blow loose items around and into ventilation openings. | |
| Status Indicators are not functioning properly. | Check the status indicators for any visible damage or loose connections. If the issue persists, refer to the troubleshooting table. | |
| Control and diagnostics via network or PC (laptop) are not working. | Ensure that the network connection is stable and correct. Check the control panel settings for any misconfigurations. Refer to the troubleshooting table if issues continue. | |
| The generator set produces excessive noise during operation. | Possible causes include: loose or damaged engine components, worn-out bearings, or a malfunctioning muffler. | Inspect the engine for any loose parts and tighten as necessary. Check the bearings for wear and replace if needed. Test the muffler to ensure it is functioning properly. |
| Fail to Start Indicator: This red lamp indicates the engine failed to start. | To clear a Fail to Start shutdown, place the O/Manual/Auto switch in the O position and press the Fault Acknowledge/Reset button. Before attempting to restart, wait two minutes for the starter motor to cool and then repeat the starting procedure. If the engine does not run after a second attempt, refer to the Troubleshooting section. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
74| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 122-0702 | Head, Oil Filter | 1 | Oil filter | PartsGeek |
| 122-0777 | Filter, Lube Oil | 1 | Oil filter | PartsGeek |
| 128-0108 | Insulation, Hose – Bulk (Order By The Foot – 12 Feet Required) | - | Hose | PartsGeek |
| 130-1193 | Gasket, Outlet Adapter | 1 | Gasket | PartsGeek |
| 130-3839-01 | Guard, Belt − Right Side | 1 | Belt | PartsGeek |
| 130-3839-02 | Guard, Belt − Left Side | 1 | Belt | PartsGeek |
| 130-3840 | Guard, Belt − Top | 1 | Belt | PartsGeek |
| 130-3841 | Guard, Belt − Bottom | 1 | Belt | PartsGeek |
| 130-3842 | Guard, Belt − Front | 1 | Belt | PartsGeek |
| 130-3843 | Guard, Belt − Right Side | 1 | Belt | PartsGeek |
| 130-3844 | Guard, Belt − Bottom Back | 1 | Belt | PartsGeek |
| 130-3845 | Guard, Belt − Top Back | 1 | Belt | PartsGeek |
| 130-3846 | Guard, Belt − Left Side | 1 | Belt | PartsGeek |
| 130-3874 | Base, Mounting * − Parts Used On Heat Exchanger Installations With Automatic Water Regulator + − Parts Used On Heat Exchanger Installations Without Automatic Water Regulator # − Cut Off And Discard Swivel Connector End Of Hose So That 1/8 NPT Connector End Measures Length As Indicated Above | 1 | Hose | PartsGeek |
| 130-4354 | Radiator (Includes Cap, Sight Gauge And Overflow Hose) (Also Includes Cover Plates, Gaskets, Screws And Lock Washers For All Water Outlets) | 1 | Gasket | PartsGeek |
| 130-4552 | Cover, Coolant Heater | 2 | Fluid | PartsGeek |
| 140-2301 | Cleaner, Air (Includes Replacement Elements) 140−2465 | 2 | Air filter | PartsGeek |
| 193-0444 | Sender, Oil Pressure (S1) | 1 | Sensor | PartsGeek |
| 193-0468 | Sender, Low Coolant Level (S7) | 1 | Sensor | PartsGeek |
| 193-0529-01 | Sender, Oil Temperature | 1 | Sensor | PartsGeek |
| 309-0649 | Thermostat | 1 | Thermostat | PartsGeek |
| 323-1445 | * Seal, Cable (Used With Station 17) | 2 | Seal | PartsGeek |
| 330-0141-04 | Gasket, Cover | 1 | Gasket | PartsGeek |
| 330-0142 | Box, Terminal (Includes Cover and Gasket − Ref No. 19 and 20) | 1 | Gasket | PartsGeek |
| 333-0407-05 | Heater, Oil (300 Watt, 480 Volt) | 1 | Fluid | PartsGeek |
| 501-0537-22 | Hose, Oil (86”) | 1 | Hose | PartsGeek |
| 501-0537-23 | Hose, Oil (22”) | 1 | Hose | PartsGeek |
| 501-0744-01 | Hose, Coolant | 1 | Hose | PartsGeek |
| 501-0744-05 | Hose, Coolant | 2 | Hose | PartsGeek |
| 502-0313 | Elbow, Hose − 90° (1/8” Pipe to 1/4” Hose) | 4 | Hose | PartsGeek |
| 502-0395 | Connector, Hose | 4 | Hose | PartsGeek |
| 502-0971 | Connector, Hose | 2 | Hose | PartsGeek |
| 502-1337 | Adapter, Coolant Heater | 1 | Fluid | PartsGeek |
| 502-1530 | Union, Hose (1”) − Nylon | 2 | Hose | PartsGeek |
| 502-1531 | Connector, Hose | 2 | Hose | PartsGeek |
| 503-0189 | Clamp, Hose | 1 | Hose | PartsGeek |
| 503-0249 | Hose − Bulk (Order by the Foot − 3 Feet Required) | - | Hose | PartsGeek |
| 503-0569 | Hose (3−1/2” ID) Bulk (Order By The Foot − 2 Feet Required) | 1 | Hose | PartsGeek |
| 503-0685 | Clamp, Hose | 2 | Hose | PartsGeek |
| 503-0856 | Hose, Radiator − Lower (3−1/2” ID x 5−1/2”) | 2 | Hose | PartsGeek |
| 503-1418 | Hose − Bulk (1/4” ID) (Order By The Foot − 18 Feet Required) | 1 | Hose | PartsGeek |
| 503-1620 | Hose – Bulk (3/8" ID) (Order by the Foot) | - | Hose | PartsGeek |
| 503-1634 | Hose, Silicon Rubber | 2 | Hose | PartsGeek |
| 503-1634-01 | Hose, Rubber (3/4” ID x 4”) | 4 | Hose | PartsGeek |
| 503-1728 | Hose (3” ID x 5–1/2”) | 1 | Hose | PartsGeek |
| 503-1779 | Hose − Bulk (1” ID) (Order By The Foot − 1 Foot Required) | - | Hose | PartsGeek |
| 503-1870-07 | Clamp, Hose | 1 | Hose | PartsGeek |
| 503-1870-11 | Clamp, Hose | 2 | Hose | PartsGeek |
| 503-1870-12 | Clamp, Hose | 2 | Hose | PartsGeek |
| 503-1870-14 | Clamp, Hose | 2 | Hose | PartsGeek |
| 503-1872-01 | Clamp, Hose | 4 | Hose | PartsGeek |
| 503-1872-05 | Clamp, Hose | 2 | Hose | PartsGeek |
| 503-1872-07 | Clamp, Hose | 6 | Hose | PartsGeek |
| 503-2157-01 | Clamp, Hose | 8 | Hose | PartsGeek |
| 503-2276 | Elbow, Hose | 2 | Hose | PartsGeek |
| 503-2350-04 | Hose, Coolant (1” x 5‘) | 1 | Hose | PartsGeek |
| 503-2350-05 | Hose, Coolant (1” x 8‘) | 2 | Hose | PartsGeek |
| 505-0759 | Adapter − Pipe to Hose (1” x 1”) | 1 | Hose | PartsGeek |
| 508-0292 | Washer, Sealing - Copper | 1 | Washer | PartsGeek |
| 511-0105 | Belt−V | 1 | Belt | PartsGeek |
| 518-0548-20 | Clamp, Hose | 1 | Hose | PartsGeek |
| 870-0257 | Nut, Locking (5/16−18) * − Parts Used On Heat Exchanger Installations With Automatic Water Regulator # − Cut Off And Discard Swivel Connector End Of Hose So That 1/8 NPT Connector End Measures Length As Indicated Above + − Parts Used On Heat Exchanger Installations Without Automatic Water Regulator | 1 | Hose | PartsGeek |
| FF202 | Fuel, Spin-On | 2 | Fuel filter | Amazon eBay $34.99 PartsGeek |
| FS1216 | Fuel/Water Sep Spin-On | 2 | Fuel filter | Amazon eBay $44.99 PartsGeek |
| 098-7954 | Label, Information − Element Replacement | 2 | Service part / kit | PartsGeek |
| 130-5666-02 | Tube, Water Heater | 1 | Service part / kit | PartsGeek |
| 130-5852-02 | Tube, Water Heater | 1 | Service part / kit | PartsGeek |
| 140-1260 | Fitting, Safety Filter | 2 | Service part / kit | Amazon eBay $35.00 PartsGeek |
| 140-1260-01 | Fitting, Safety Filter | 1 | Service part / kit | PartsGeek |
| 323-1491 | * Pin, Contact (Used With Inline G) | 3 | Service part / kit | PartsGeek |
| 323-1492 | * Socket, Contact (Used In Stations 18, 19) | 4 | Service part / kit | PartsGeek |
| 323-1718 | * Pin, Contact (Used In Station 17) | 2 | Service part / kit | PartsGeek |
| 332-2634 | Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper) | 10 | Service part / kit | PartsGeek |
| 898-1254-25 | Sleeving – Heater Leads (59”) | 1 | Service part / kit | PartsGeek |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | |||
| Standby |
Available documents
Spec sheet — 0080258 (Cummins/Onan)Spec sheet — Cummins-installation-manual-DFAA-DFAB-DFAC-DFBC-DFBF-DFBD-DFBE-DFBF-DFCB-DFCC-DFCE-DFEB-DFEC-DFED-DFFA-DFFB-DFGA-DFGB-DFGC-DFJA-DFJB-DFJC-DFJD-DFLA-DFLB-DFLC-DFLD-DFLE-DFMB-DQAA-DQAB-DQBA-DQBB (Cummins/Onan)Operator's manual — 960-0103 Cummins DFGA DFGB DFGE Operator's Manual (7-2010) (Cummins/Onan)Reference — 9-3Parts manual — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 0960-0204 (Cummins/Onan)Parts manual — 960-0295 Cummins DFGB DFGE Parts Manual (1-2010) (Cummins/Onan)Service manual — 960-0145 Cummins DFGA DFGB Operator's Manual (6-2000) (Cummins/Onan)Service manual — 960-0169 Cummins DFGB DFGE Operator's Manual (6-2005) (Cummins/Onan)Service manual — 960-0504 Onan DFxx series Generator Control Service Manual 04-1993 (Cummins/Onan)Service manual — 960-0507C Cummins DFAA thru DFMB DQAA Service Manual (2-2004) (Cummins/Onan)Service manual — 960-0519C Cummins DFAB DFB DFC DFG DFLC Series Service Manual (2-2004) (Cummins/Onan)Service manual — 960-0630C Cummins DFGB DFGE DFLB DFLC DFLE Installation Manual (2-2004) (Cummins/Onan)Service manual — Cummins-3100-PowerCommand-DFAA-DFAB-DFAC-DFBC-DFBD-DFBE-DFBF-DFCB-DFCC-DFCE-DFEB-DFEC-DFED-DFFA-DFFB-DFGA-DFGB-DFGC-DFJA-DFJB-DFJC-DFJD-DFLA-DFLB-DFLC-DFLD-DFLE-DFMB-DQAA-DQAB-DQBB (Cummins/Onan)Service manual — Detector Control Generator Set Service Manual (Cummins/Onan)