Cummins

441

UnclassifiedCooling

What This Code Means

External oil leak; Engine oil temperature has exceeded the warning threshold; Battery voltage is low; Low oil rifle pressure; Engine shutdown; Communication between the engine control (ECM) and the PCC is severed; CAN Data Link Degraded warning; Battery voltage is below 24 VDC and approaching low level; Unpredictable equipment operation; Low Battery 1 Voltage warning; Battery voltage to the control is approaching high level (exceeding 32 VDC); Potential damage to the control; High Battery 1 Voltage warning

Possible Causes

  • •Lubricating oil level is low
  • •External leak
  • •High ambient temperature
  • •Blocked enclosure air intake
  • •Coolant level below specification
  • •Loose or damaged battery cable connections
  • •Battery charger not connected (if equipped)
  • •Battery not completely charged
  • •Battery is old and does not maintain a charge
  • •Low oil level
  • •Oil system issues (lines or filters)
  • •Active E-Stop button
  • •Dirty battery terminals or loose connections
  • •Low electrolyte level
  • •Discharged or defective battery
  • •Incorrect battery charge float level

Suggested Actions

  1. 1Check the oil level. Add oil, if necessary.
  2. 2Inspect the engine and surrounding area for external oil leaks.
  3. 3If a leak is present, contact your Cummins service representative.
  4. 4Reduce loads or recirculation of discharge air to generator in elevated ambient.
  5. 5Inspect for dirt, debris, or obstructions.
  6. 6Remove blockage or snow/ice buildup as applicable.
  7. 7Check coolant level.
  8. 8Add coolant as necessary.
  9. 9Inspect the battery cable connections for corrosion and loose connections. Adjust or repair if needed.
  10. 10Make sure that the battery charger is connected to the AC power supply.
  11. 11Make sure that the battery charger is connected correctly to the battery.
  12. 12Allow the engine to cool down completely before proceeding with checks
  13. 13Check the oil level, lines and filters
  14. 14Replenish oil level if low
  15. 15Reset the control and restart after locating and correcting the problem
  16. 16Allow the engine to cool down completely before proceeding
  17. 17Ensure the E-Stop button is not active
  18. 18Reset the Local/Remote Emergency Stop
  19. 19If the engine can be stopped, allow the engine to cool down completely before proceeding
  20. 20Clean battery terminals and tighten all connections

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