Specifications

9-2010 5. Troubleshooting
Corrective Actions:
1. Reduce the number of connected loads especially loads that require higher starting current
such as air conditioners.
2. Check and service air filter as necessary.
3. Have unit serviced by an authorized Cummins Onan dealer.
5.4.15 Voltage Sense Lost - Fault Code 27
Possible Causes: Generator set loads, generator windings, ignition, wire connections
Corrective Actions:
1. Have unit serviced by an authorized Cummins Onan dealer.
WARNING: Some Generator Set service procedures present hazards that can result in
severe personal injury or death. Only trained and experienced service
personnel with knowledge of fuels, electricity, and machinery hazards should
perform Generator Set service.
5.4.16 High Battery Voltage - Fault Code 29
Possible Causes: Incorrect battery configuration, wire damage, faulty charger, control
Corrective Actions:
1. Have battery charger serviced by an authorized Cummins Onan dealer.
5.4.17 Low Cranking Speed Sense - Fault Code 32
Possible Causes: Starter, engine components, air intake system, exhaust system, generator
windings, wire connections, battery, battery connections, oil viscosity
Corrective Actions:
1. Clean and tighten positive (+) and negative (-) battery cable connections at the battery.
2. Recharge or replace battery. Refer to the battery manufacturer's recommendations.
3. Verify engine oil viscosity is correct for the ambient temperature. If not, refill and replace
engine oil with correct viscosity.
4. Have unit serviced by an authorized Cummins Onan dealer.
5.4.18 Control Card Failure - Fault Code 35
Possible Causes: Faulty program
Corrective Actions:
1. Have unit serviced by an authorized Cummins Onan dealer.
5.4.19 Generator Set Stopped Without Fault Condition - Fault
Code 36
Possible Causes: Fuel supply, air fuel mixture, exhaust system, choke demand regulator,
carburetor, generator windings, ignition, wire connections
A029V089 (Issue 3) 43