Specifications

TABLE 4. TROUBLESHOOTING (CONT.)

Some genset service procedures present hazards that can result in severe per-

sonal injury or death. Only qualified service personnel with knowledge of fuels, electricity, and

machinery hazards should perform genset service. See Safety Precautions.

WARNING

INVERTER OVERVOLTAGE FAULT—CODE NO. 12

(Controller not able to regulate to rated voltage)

Corrective Action: Check whether the vehicle engine and genset share the same starting battery. If

so, and this fault occurs when cranking the vehicle engine, low battery voltage may be causing this

shutdown. Increase battery capacity or install a separate battery and battery charging system for the

genset.

INVERTER UNDERVOLTAGE FAULT—CODE NO. 13

(Controller not able to regulate to rated voltage)

Corrective Action: Check whether the vehicle engine and genset share the same starting battery. If

so, and this fault occurs when cranking the vehicle engine, low battery voltage may be causing this

shutdown. Increase battery capacity or install a separate battery and battery charging system for the

genset.

INVERTER OVERFREQUENCY FAULT—CODE NO. 14

(Controller not able to regulate to rated frequency)

Corrective Action: Reduce the number of connected appliances, especially when air conditioners and

battery chargers are running.

INVERTER UNDERFREQUENCY FAULT—CODE NO. 15

(Controller not able to regulate to rated frequency)

Corrective Action:

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

are running.

2. Have air conditioners and other appliances checked for proper operation. (A locked compressor ro-

tor can cause very low power factor.)

GOVERNOR ACTUATOR FAULT—CODE NO. 19

(Controller sensed open or short 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: Reduce the number of connected appliances, especially when air conditioners and

battery chargers are running.