Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 300 kW |
| Controller | Detector |
| Oil capacity | 34.0 L |
| Voltage options | 24 V |
| Phase | 3 |
| Rated current | 12 A |
| Battery group | ['8D'] |
| Battery cranking | 1400 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 51 L |
| Fuel tank | 78.8 L |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | — | 4 hr | find | ||
| Oil filter | — | 250 hr | find | ||
| Belt | — | 3 hr | find | ||
| Coolant | Coolant | — | |||
| Coolant filter | — | 5060 hr | find | ||
| Oil | 36.0 | — | 50 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Cummins/Onan DQBA?
The Cummins/Onan DQBA is rated 300 kW standby.
What engine does the Cummins/Onan DQBA use?
The Cummins/Onan DQBA is powered by the Cummins/Onan N14-G2 engine.
What fuel does the Cummins/Onan DQBA use?
The Cummins/Onan DQBA runs on Diesel.
Troubleshooting
9Fault codes
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| 231 | Warning lamp lights. | Indicates battery voltage exceeds 32 VDC. Contact an authorized service center. | |
| 250 | Shutdown lamp lights. | Indicates PCC memory error. Data corruption of critical operating parameters. Contact an authorized service center. | |
| 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. |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine starts from generator control panel but will not start automatically or from a remote panel. | (Note: The Run/Off/Auto switch must be in the Auto position for automatic or remote starting). Check the control wiring between the remote switch and the PCC. Contact an authorized service center. | |
| No AC output voltage. | Contact an authorized service center. | |
| Control does not power up when the Run/Off/Auto switch is set to Run or the Self Test switch is pressed. | There is no DC power to the control. | A. Check for battery disconnected, discharged, or improperly connected. b. Fuse F1 (20A/32V, Type 3AG) may be open. Replace with the same type. (Fuse is mounted near engine starter/solenoid, see Figure 4-2). Contact an authorized service center. |
| Warning, Shutdown, and Non-Automatic lamps are not lit. Digital display shows main menu or selected menu. | Indicates all engine systems are normal. No corrective action required | |
| Non-Automatic lamp flashes. | Indicates Run/Off/Auto switch is not in the Auto position. This will prevent automatic starting if an automatic transfer switch is used. | Move the Run/Off/Auto switch to the Auto position for automatic operation. |
| 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. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0300-4623-09 | DFCB (600V) | 1 | Current transformer | buy |
| 0300-4623-10 | DFCC (600V) | 1 | Current transformer | buy |
| 0300-4623-24 | DFCB BR (0-480V) | 1 | Current transformer | buy |
| 0300-4623-27 | DFCC BR (0-480V) | 1 | Current transformer | buy |
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.
Available documents
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)Parts manual — 960-0268 Onan DQAA DQAB DQBA DQBB Parts Manual (9-1991) (Cummins/Onan)Service manual — 960-0101C Cummins DFBF DFCB DFCC DFCE DQBA DQBB Operators Manual (3-2001) (Cummins/Onan)Service manual — 960-0507C Cummins DFAA thru DFMB DQAA Service Manual (2-2004) (Cummins/Onan)Service manual — Detector Control Generator Set Service Manual (Cummins/Onan)