F5

UnclassifiedElectrical

What This Code Means

Engine fails to start and starter does not rotate; Engine fails to start and starter rotates; Engine starts, engine speed switch is in HIGH position, and engine remains at low speed; Engine starts, engine speed switch is in HIGH position, engine speed rises, and no voltage is present in AC power source; Engine starts, engine speed switch is in HIGH position, engine speed rises, and voltage is too low or cannot be used; Engine starts, "Idle Control Switch" is in OFF position, and engine remains at low speed; Engine starts, "Idle Control Switch" is in OFF position, engine speed rises, and battery discharges too soon; Engine starts, "Idle Control Switch" is in OFF position, engine speed rises, and engine seems overloaded; Engine starts, "Idle Control Switch" is in OFF position, engine speed rises, and engine has abnormal noise; Engine starts, "Idle Control Switch" is in OFF position, engine speed rises, and remains at high speed when Idle Control switch is placed in the ON position; Engin

Possible Causes

  • Fuse F5 burned out
  • Dead battery
  • Defective starter switch
  • Defective starter
  • Broken pre-heat circuit
  • No fuel
  • Defective wiring
  • Defective engine speed switch
  • Clogged fuel strainer
  • Clogged air cleaner
  • Disconnected wiring
  • Defective solenoid
  • Fuse F2 burned out
  • No voltage present in AC power source
  • Defective rotor
  • Defective voltmeter
  • Layer short-circuit in armature winding
  • Defective AVR
  • Defective circuit breaker (protector)
  • Layer short-circuit or broken wires in armature winding

Suggested Actions

  1. 1Replace fuse
  2. 2Replace battery
  3. 3Replace switch
  4. 4Replace starter
  5. 5Check pre-heat circuit
  6. 6Add fuel
  7. 7Check wiring
  8. 8Clean or replace fuel strainer
  9. 9Clean or replace air cleaner
  10. 10Check and repair wiring
  11. 11Replace solenoid
  12. 12Check solenoid and solenoid circuit and replace fuse
  13. 13Replace rectifier (RE)
  14. 14Replace rotor
  15. 15Replace voltmeter
  16. 16Replace armature
  17. 17Replace AVR if necessary
  18. 18Replace circuit breaker (protector)
  19. 19Repair or replace armature
  20. 20Replace Battery

Related Multiquip Fault Codes

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