Fault Codes/Rehlko/ALT PROTECT SHUTDWNRehlkoALT PROTECT SHUTDWNUnclassifiedElectricalWhat This Code MeansAlternator protection tripRelated Rehlko Fault CodesBATT CHG FLT WARNINGBATTERY CRLOAGS-10BATTERY HIGHADC-RESBATTERY HIGH WARNINGAC SENS LOSSBATTERY LOW WARNINGA-336415-ABATTERY VOLTAGE HIGH W516370 3BATTERY VOLTAGE LOW WBrowse all Rehlko fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for ALT PROTECT SHUTDWN on your specific Rehlko unit — cited to the OEM manual, not a forum guess.Your question about ALT PROTECT SHUTDWNGET THE ANSWERFree account required — we'll bring your question with you.