Onan

00-015

UnclassifiedCooling

What This Code Means

Continuous sleeper heat; Coolant loss (external); Coolant temperature above normal; Coolant temperature below normal

Possible Causes

  • •Faulty coolant solenoid valves
  • •Faulty temperature control module
  • •Low coolant level
  • •Cracked or leaking hoses
  • •Loose hose clamps
  • •Radiator leaks
  • •Coolant in oil
  • •Faulty high engine temp switch
  • •Incorrect winter door position
  • •Worn or damaged fan belt
  • •Incorrect fan belt tension
  • •Faulty fan condition
  • •Plugged radiator
  • •Incorrect engine coolant level

Suggested Actions

  1. 1Troubleshoot coolant solenoid valves
  2. 2Troubleshoot temperature control module
  3. 3Check coolant level
  4. 4Check for cracked or leaking hoses
  5. 5Check for loose hose clamps
  6. 6Check radiator for leaks
  7. 7Check for coolant in oil
  8. 8Pressure test coolant system
  9. 9Run generator set and check for leaks
  10. 10Check high engine temp switch
  11. 11Check winter door position
  12. 12Check fan belt condition
  13. 13Check fan belt tension
  14. 14Check fan condition
  15. 15Check radiator for plugging
  16. 16Check engine coolant level

Related Onan Fault Codes

00-02200-04600-01400-04700-01000-04800-0CV100-0CF200-0AU4
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