Product Manual

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

GOVERNOR ACTUATOR FAULT—CODE NO. 19

(Controller sensed open or shorted circuit)

Corrective Action: See an authorized Onan dealer.

GOVERNOR ACTUATOR OVERLOAD FAULT—CODE NO. 22

(Duration of operation at or near full-duty cycle beyond design limit)

Corrective Action:

1. Reduce the number of connected appliances, especially when air conditioners and battery chargers

are running.

2. Service the air cleaner (Page 19).

3. Check for and repair a blocked exhaust system.

LOW OIL PRESSURE CUTOFF SWITCH FAULT—CODE NO. 23

(Controller sensed switch still open during start—not a running fault)

Corrective Action: See an authorized Onan dealer.

VOLTAGE SENSE FAULT—CODE NO. 27

(Controller unable to sense output voltage)

Corrective Action: See an authorized Onan dealer.

HIGH BATTERY VOLTAGE FAULT—CODE NO. 29

(Voltage across battery system greater than 19 volts)

Corrective Action:

1. Check battery bank connections and reconnect if necessary so that the 12 volt batteries serving the

genset are connected in parallel (12 volt) rather than in series (24 volt).

2. Select a lower battery boost charge rate.

OVERSPEED FAULT—CODE NO. 31

(Engine speed greater than 3400 rpm)

Corrective Action: See an authorized Onan dealer.