Rehlko

F2

UnclassifiedElectrical

What This Code Means

Emergency Stop activated; Common Fault / Prealarm; Blown F1 fuse (remote annunciator: 3amp); Blown F2 fuse (controller: 3amp); Blown F3 fuse (engine and accessories: 15amp); Engine will not crank; Controller LED4 is not lit; Controller LED4 is not lit after placing test jumper between TB1-1 and TB1-1A; Controller LED4 is lit; Controller LED2 and LED3 do not light with generator master switch in RUN position; Controller LED2 and LED3 light with generator master switch in RUN position; Lamps do not light when pressing lamptest button; Generator failure to stop; Engine fault protection; Generator failure to start; Generator failure to run; Incorrect AC voltage or current readings; Inability to select AC output for measurement; Incorrect generator voltage regulation; Unstable generator output voltage; Fault shutdown; Remote annunciator not functioning; Controller not functioning; Speed sensor not functioning; Lamp circuit board not functioning; Engine/starting circuitry not functioning; Ac

Possible Causes

  • •AOP activated
  • •AUX activated
  • •AWT activated
  • •Battery Charger Fault activated
  • •Battery connections reversed
  • •Defective audio/visual alarm
  • •Defective dry contact kit
  • •Defective engine electrical components
  • •Defective overvoltage board
  • •Defective panel lamps, engine gauges
  • •HWT activated
  • •LOP activated
  • •Low Battery activated
  • •Low Fuel activated
  • •OC activated
  • •OS activated
  • •Remaining accessories connected to TB1-42A
  • •Remote switch activated
  • •Shorted DC supply to indicator panel
  • •Shorted controller circuit board

Suggested Actions

  1. 1Charge battery and attempt restart
  2. 2Check P1 connector/harness
  3. 3Check engine start circuit (P1 harness, starter, solenoid, battery connections)
  4. 4Check for DC voltage at Fuse F2 (3amp)
  5. 5Check fuse
  6. 6Check if battery connections are loose or reversed
  7. 7If fuse blows again, refer to Fuses earlier in this section
  8. 8Inspect and repair P3/P4 harness and connections
  9. 9Isolate and repair or replace defective component.
  10. 10Place test jumper between TB1-1 and TB1-1A
  11. 11Refer to Fuses earlier in this section if fuse blows again
  12. 12Remove test jumper before proceeding
  13. 13Repair/replace defective emergency stop switch (controller or remote)
  14. 14Repair/replace defective emergencystop switch (controller or remote)
  15. 15Replace circuit board
  16. 16Replace defective indicator panel circuit board
  17. 17Replace fuse
  18. 18Replace fuse and resume operation. If fuse blows again, use chart to identify faulty component(s).
  19. 19Reset air damper on 200-1600kW Detroit Diesel models only
  20. 20Reset emergency stop switch (controller or remote)

Related Rehlko Fault Codes

F2 (5A-T)F3F1F4CURRENT A HIGHFAIL TO ACQUIRECONNOTDETERMFAIL TO ACQUIRE STANDBYCONCHECKFAILFREQUENCY HIGHCHECK AC SENS LOSSFREQUENCY LOW
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