Fault Codes/Rehlko/HIGH ENGINE TEMPERATURERehlkoHIGH ENGINE TEMPERATUREUnclassifiedGeneralWhat This Code MeansLED display communicates faultsPossible Causes•Undervoltage•High battery voltage•High engine temperature•Low battery voltage•Low oil pressure•Overcrank safety•Overfrequency•Overspeed•Overvoltage•UnderfrequencyRelated Rehlko Fault CodesLED4LFHIGH BATTERY VOLTAGELO CRANK VLT WHETLOCKED ROTOR SDGENERATOR VOLTAGEL1-L2 LOW SDLOW BATTERY VOLTSGENERATOR VOLTAGEL1-L2 HIGH SDLOWBATTERYVOLTSGENERATOR FREQUENCY LOW SDLWTBrowse all Rehlko fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for HIGH ENGINE TEMPERATURE on your specific Rehlko unit — cited to the OEM manual, not a forum guess.TRY IT FREE