Product Manual

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TABLE 5. TROUBLESHOOTING (CONT.)
Some genset service procedures present hazards that can result in severe per-
sonal injury or death. Only trained and experienced service personnel with knowledge of fuels,
electricity, and machinery hazards should perform genset service. See Safety Precautions.
WARNING
OVERCURRENT (FIELD OVERLOAD) FAULT—CODE NO. 38
(Low power factor loads)
Corrective Action:
1. Reduce the number of appliances running at the same time, especially those with high motor starting
loads such as air conditioners.
2. Have air conditioners and other appliances checked for proper operation. (A locked compressor
rotor can cause very low power factor.)
GENERATOR ROTOR FAULT—CODE NO. 41
(Controller unable to sense field or output voltage)
Corrective Action: See an authorized Onan dealer.
PROCESSOR FAULT—CODE NO. 42
(Microprocessor ROM error during self-test)
Corrective Action: See an authorized Onan dealer.
PROCESSOR FAULT—CODE NO. 43
(Microprocessor RAM error during self-test)
Corrective Action: See an authorized Onan dealer.
SPEED SENSE FAULT—CODE NO. 45
(Controller unable to sense quadrature frequency)
Corrective Action: See an authorized Onan dealer.
IGNITION FAULT—CODE NO. 47
(Controller unable to sense ignition)
Corrective Action: See an authorized Onan dealer.
GENERATOR FIELD SENSE FAULT—CODE NO. 48
(Controller unable to sense field voltage)
Corrective Action: See an authorized Onan dealer.