Generac

1501

UnclassifiedCooling

What This Code Means

RPM Sensor Loss; Engine cranks but will not start; Unit turns over but will not start; Overspeed; Low oil pressure; High temperature; Twin Cylinder Running faults; Twin Cylinder Cranking faults; Unit is Overloaded; Engine speed slowing; Prolonged Under-Voltage; Instantaneous Undervoltage; Shutdown Alarm/ Fault Occurred During Crank Attempt, Start or Run; NO CRANK; Wiring Continuity Issue (Wire 18); LOW OIL PRESSURE; HIGH OIL TEMPERATURE; OVERCRANK; LOW BATTERY; IGNITION SPARK ISSUE; SHUTDOWN WIRE ISSUE; OVERSPEED; RPM SENSE LOSS; CRANK; NO CRANK CODE; RUNNING E-CODE; LOW OIL PRESSURE E-CODE; HIGH TEMP E-CODE; OVERCRANK E-CODE; OVERSPEED E-CODE; RPM SENSE LOSS E-CODE; CRANK E-CODE; Engine shutdown; Loss of engine ignition; Fuel shutoff solenoid closure; Engine shutdown and latch out; Engine re-cranks

Possible Causes

  • •Starter motor issue
  • •Controller is receiving signal on Wire 18
  • •Stepper motor/mixer body assembly issue
  • •Occurred while running
  • •Air flow impeded / flow issue
  • •Air pocket in fuel line
  • •Dirty fuel
  • •Missing ignition pulse (loss of one of the primary coils)
  • •Unit is Overloaded
  • •Fuel supply low
  • •Throttle control problem
  • •Loss of voltage for some time (10+ seconds)
  • •Sudden loss of voltage
  • •NO SIGNAL
  • •BAD NO SIGNAL
  • •BAD
  • •SHORTED WIRE 18 OR CIRCUIT BOARD
  • •Grounding of the ignition circuit
  • •Closure of the fuel shutoff solenoid
  • •Temperature exceeds approximately 293 ºF (144 ºC)

Suggested Actions

  1. 1Problem 17
  2. 2Test 12
  3. 3Check oil level and pressure
  4. 4Test 61
  5. 5Check the inlet/outlet for debris
  6. 6Test 62
  7. 7Test 50
  8. 8Test 64
  9. 9If engine cranks, Test 64
  10. 10If engine does not crank, Problem 15
  11. 11Problem 3
  12. 12Preliminary Output Voltage Test (firmware v1.01 ( Oevo ) and above)
  13. 13Update controller to latest firmware
  14. 14Preliminary Output Voltage Test (firmware v1.01 (Oevo)
  15. 15REPAIR OR REPLACE DEFECTIVE SWITCH
  16. 16CHECK INSTALLATION FOR PROPER AIRFLOW
  17. 17TEST 64 – CHECK WIRE 18 CONTINUITY
  18. 18REPAIR OR REPLACE SHORTED WIRE 18 OR CIRCUIT BOARD
  19. 19TEST 61 – CHECK OIL PRESSURE SWITCH AND WIRE 86
  20. 20TEST 62 – CHECK HIGH OIL TEMPERATURE SWITCH

Related Generac Fault Codes

150515111500151514051516140415171403152114011522
Browse all Generac fault codes

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