ES

UnclassifiedGeneral

What This Code Means

Audiovisual alarm or common fault relay activated on Common fault/prealarm line 2 (Terminal 32A); Emergency stop switch not functioning; Emergency stop relay (K4) inactive

Possible Causes

  • AHET (Anticipatory high engine temperature) fault
  • ALOP (Anticipatory low oil pressure) fault
  • AUX (Auxiliary) fault
  • Auxiliary (AUX) fault (Terminal 26)
  • Batterycharger fault
  • ES (Emergency stop) fault
  • Emergency stop (ES) fault (Terminal 48)
  • Emergency stop switch is not connected across terminals TB1-1 and 1A
  • Emergency stop switch is not used and no jumper is installed
  • HET (High engine temperature) fault
  • High engine temperature (HET) fault (Terminal 36)
  • LF (Low fuel) fault
  • LOP (Low oil pressure) fault
  • LWT (Low water temperature) fault
  • Low battery volts
  • Low oil pressure (LOP) fault (Terminal 38)
  • OC (Overcrank) fault
  • OS (Overspeed) fault
  • Open circuit across emergency stop terminals TB1-1 and 1A
  • Overspeed (OS) fault (Terminal 39)

Suggested Actions

  1. 1Activate audiovisual alarm or common fault relay
  2. 2Connect battery charger alarm contact to TB1-62
  3. 3Connect batterycharger alarm contact to TB1-61
  4. 4Connect emergency stop across terminals TB1-1 and 1A
  5. 5Connect fuel level sensor to TB1-63
  6. 6Connect jumper across terminals 1 and 1A
  7. 7Connect jumper across terminals 1 and 1A if emergency stop switch is not used
  8. 8Use a remote annunciator and/or audiovisual alarm kit as an indicator with a dry contact kit connected to controller terminal strip TB1

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for ES on your specific Rehlko unit — cited to the OEM manual, not a forum guess.

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