OVER VOLTAGE

UnclassifiedCooling

What This Code Means

Automatic engine shutdown; Engine fails to start; Low oil pressure; High engine temp; High coolant temp; Engine over speed; Low Radiator Level; Low coolant level; Engine under speed; Over voltage; Under voltage; Battery fail alarm; Over-excitation; High ambient temp

Possible Causes

  • Over-excitation
  • Low oil pressure
  • High engine temp
  • Engine over speed
  • Low Radiator Level
  • Engine under speed
  • Over voltage
  • Under voltage
  • Battery fail
  • Oil pressure drop below safety threshold
  • Cranking cycle completed without ignition
  • Engine temperature exceeding safety limits
  • Engine RPM exceeding rated speed limits
  • Insufficient coolant in radiator
  • Engine RPM falling below rated speed limits
  • AC output voltage outside of regulated 1% range
  • Battery voltage or charging system fault
  • Voltage regulator over-excitation
  • Ambient air temperature exceeding operating limits
  • High engine temperature

Suggested Actions

  1. 1Automatic engine shutdown
  2. 2Under-speed protection
  3. 3Check battery tray, cables, and 3-stage battery charger
  4. 4Over-excitation protection
  5. 5Shut-down sensor activation

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