22
UnclassifiedElectrical
What This Code Means
Governor Actuator Fault; Governor Actuator Overload; Unable to sense output voltage; High Battery Voltage; Voltage across the battery system is greater than 19 Volts; Low Cranking Speed; Cranking speed is less than 180 RPM for more than 2 seconds
Possible Causes
- •Control sensed an open or shorted circuit
- •Duration of operation is near full-duty cycle beyond design limit
- •Dirty air filter
- •Blocked exhaust system
- •Voltage sense circuit failure
- •12 Volt batteries serving the generator set are connected in series (24 Volt) rather than in parallel (12 Volt)
- •Battery boost charge rate is too high
- •Dirty or loose battery cable connections
- •Low battery charge or depleted battery
Suggested Actions
- 1Contact Local Dealer or Distributor
- 2Reduce the number of connected appliances, especially air conditioners and battery chargers
- 3Replace the air filter if dirty
- 4If exhaust system is blocked, remove blockage
- 5Check battery bank connections and reconnect if necessary so that the 12 Volt batteries serving the generator set are connected in parallel (12 Volt) rather than in series (24 Volt)
- 6Select a lower battery boost charge rate
- 7Clean and tighten the positive (+) and negative (–) battery cable connections at the battery and at the generator set
- 8Recharge or replace the battery
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for 22 on your specific Cummins unit — cited to the OEM manual, not a forum guess.
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