AD

UnclassifiedGeneral

What This Code Means

Common fault/prealarm line 1 activated; Common fault/prealarm line 2 activated; Fault lamp activated (activelow)

Possible Causes

  • •OC (Overcrank) fault
  • •AUX (Auxiliary) fault
  • •LWT (Low water temperature) fault
  • •HET (High engine temperature) fault
  • •LOP (Low oil pressure) fault
  • •OS (Overspeed) fault
  • •AHET (Anticipatory high engine temperature) fault
  • •ALOP (Anticipatory low oil pressure) fault
  • •LF (Low fuel) fault
  • •ES (Emergency stop) fault
  • •Batterycharger fault
  • •Low battery volts

Suggested Actions

  1. 1Activate audiovisual alarm or common fault relay
  2. 2Connect batterycharger alarm contact to TB1-61
  3. 3Connect battery charger alarm contact to TB1-62
  4. 4Connect fuel level sensor to TB1-63

ASK RUDY ABOUT THIS FAULT

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

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