HomeCummins/OnanCummins/Onan DQHAA

Cummins/Onan DQHAA Generator Set

The Cummins/Onan DQHAA is a Low Sulfur Highway Diesel Fuel (500 PPM MAXIMUM) generator set powered by a Cummins/Onan QSM11−G2 NR3 engine. It is available at 24 V, 3-phase. It holds about 36.7 L (9.7 gal) of oil and 36.72 L (9.7 gal) of coolant. Starting uses 2 group-12 batteries rated 1400 CCA at 24 V.

36.7 L
Oil capacity
3
Document types

How to read your Cummins/Onan serial & model number →

Specifications

FuelLow Sulfur Highway Diesel Fuel (500 PPM MAXIMUM)
ControllerPCC 2100, PowerCommand 2100
Oil capacity36.7 L
Voltage options24 V
Phase3
Battery group12
Battery cranking1400 CCA
Battery voltage24 V
Battery quantity2
Coolant capacity36.72 L

Maintenance & consumables

for the Cummins/Onan QSM11−G2 NR3
ItemSpecCapacityPart #Interval
Air filter1000 hr find
Fuel filter500 hr find
Oil filter2000 hr find
Belt2000 hr find
Coolant50 hr
Coolant filter find
Oil12000 hr

Common questions

What engine does the Cummins/Onan DQHAA use?

The Cummins/Onan DQHAA is powered by the Cummins/Onan QSM11−G2 NR3 engine.

What fuel does the Cummins/Onan DQHAA use?

The Cummins/Onan DQHAA runs on Low Sulfur Highway Diesel Fuel (500 PPM MAXIMUM).

Troubleshooting

56

Fault codes

CodeMeaning
121Speed Signal Lost
135Oil Pressure Sensor High
141Oil Pressure Sensor Low
143Pre-Low Oil Pressure Sensor
144Coolant Temperature Sensor High
145Coolant Temperature Sensor Low
146Pre-High Cool Temp
151High Coolant Temp
197Low Coolant Level
234Overspeed
235Low Coolant Level
359Fail to Start
415Low Oil Pressure
441Low Battery Voltage
442High Battery Voltage
1123Shutdown After Battle Short
1124Delayed Shutdown
1131Battle Short Active
1244Engine Normal Shutdown
1311Customer Inputs #1
1312Customer Inputs #2
1317Customer Inputs #3
1318Customer Inputs #4
1334Crit Scaler OR
1335Non-Crit Scaler OR
1416Fail to Shutdown
1417Power Down Failure
1433Emergency Stop
1434Remote Emergency Stop
1435Low Coolant Temperature
1438Fail to Crank
1442Weak Battery
1443Battery Failed
1444KW Overload
1445Short Circuit
1446High AC Voltage
1447Low AC Voltage
1448Under Frequency
1449Over Frequency
1461Loss of Field
1466Modem Failure
1468Network Error
1469Speed/Hz Match
1471Over Current
1472Over Current
2335Excitation Fault
2336Memory Error
2341High Control Temperature
2342Too Long in Idle
2967Governor Fault
2968AVR Fault
2969LON Failure
2972Field Overload

Symptoms & remedies

SymptomCauseRemedy
Generator does not startFault Code 101 - Starter Motor FaultCheck starter motor connections and replace if necessary
Engine runs roughFault Code 203 - Fuel System FaultInspect fuel filter and injectors, clean or replace as needed
Generator produces low voltage outputFault Code 304 - Alternator Winding FaultCheck alternator windings for damage and repair or replace if necessary

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

11
Part #DescriptionQtySystem
A035N852Hose, Drain - Bulk (Order by the Foot - 1 Feet Required)-1Hose PartsGeek
ES100006Overcurrent Relay WiringOvercurrent relay wiring PartsGeek
ES100026Three Position Stack Switch WiringStack switch wiring PartsGeek
ES100027Distribution Panel Wiring for T360 Series Single Phase ControlDistribution panel wiring PartsGeek
ES100030Standard Generator Wiring for T360 SeriesGenerator wiring PartsGeek
ES100039Idle-Run Wiring (Cummins)Idle run wiring PartsGeek
134890T360 Super Quiet GeneratorService part / kit PartsGeek
961-0514InPower Service Tool Kit1Service part / kit PartsGeek
961-0619Generator Set Support4Service part / kit PartsGeek
A045Z906Isolator, Vibration1Service part / kit PartsGeek
A045Z908Bracket, Switch1Service 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

RatingLoadL/hgal/h
Prime87.63
Standby82.56

Available documents

Installation manual — Cummins-DQHAA-DQHAB-installation-manual (Cummins/Onan)Parts manual — 0961-0217 I10 201810 (Cummins/Onan)Parts manual — A042L927 I5 201810 (Cummins/Onan)Service manual — Cummins-PowerCommand-2100-controller-operator-manual (Cummins/Onan)Service manual — DQHA A-B with QSM11 Engine PCC2100 Service Manual (Cummins/Onan)