Rehlko

L1-L2 LOW VOLTAGE

UnclassifiedCooling

What This Code Means

Radiator cooling fans running during exercise when engine temperature is low; Generator shutting down during exercise; Controller display is blank; Controller display shows erroneous characters

Possible Causes

  • •Controller software issue on 48RCL models
  • •L1-L2 low voltage condition
  • •Connecting the battery at startup, during service, or during controller firmware updates
  • •High ambient temperatures

Suggested Actions

  1. 1Update the controller with software version 4.05 or higher
  2. 2Update the controller with software version 4.07 or higher
  3. 3Update the controller with software version 4.09 or higher

Related Rehlko Fault Codes

LOCKED ROTORLOPINTAKE TEMPERATURE ALARMSLOW BATTERYINJECTOR FAULT CODESLOW CHARGING BATTERYINJECTOR CODESLOW COOLANT FAULTHELOW COOLANT LEVELFUEL PRESSURE FAULTLOW OIL PRESSURE
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