Specifications

5 Troubleshooting
WARNING: Many troubleshooting procedures or replacement of parts present hazards
WARNING: Contact with a hot generator set can cause severe burns. Always allow the
The following troubleshooting guide can be used for basic problem diagnosis. If these
recommendations do not resolve the problem, contact an authorized Cummins Onan service
center.
that can result in equipment damage and severe personal injury or death.
Only trained and experienced service personnel with knowledge of fuels,
electricity, and machinery hazards should perform service procedures.
Review the Safety Precautions section of this manual.
generator set to cool before performing any maintenance or service.
ENGINE DOES NOT CRANK (ELECTRIC START)
Logic: The engine will not crank.
Possible Causes:
· Low battery
· Bad battery connection
Corrective Action:
1. Service the battery if necessary.
2. Clean and tighten battery connections.
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ENGINE CRANKS SLOWLY (ELECTRIC START)
Logic: The engine cranks slowly.
Possible Causes:
· Low battery
· Bad battery connection
· Engine oil is too heavy
· Load is connected
Corrective Action:
1. Service the battery if necessary.
2. Clean and tighten battery connections.
3. Check the engine oil and, if too heavy, replace with recommended oil.
4. Disconnect the load before starting.
914-0103 (Issue 3) 37