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
- 1Activate audiovisual alarm or common fault relay
- 2Connect batterycharger alarm contact to TB1-61
- 3Connect battery charger alarm contact to TB1-62
- 4Connect fuel level sensor to TB1-63
Related Rehlko Fault Codes
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.
TRY IT FREE