Fault Codes/Rehlko/COOLANT LVL LOW SHUTDWNRehlkoCOOLANT LVL LOW SHUTDWNUnclassifiedCoolingWhat This Code MeansLow coolant levelRelated Rehlko Fault CodesCOOLANT TEMP LOW WARNINGCOOLNT TEMP HIGH WARNING/SHUTDWNBATTERY VOLTAGE LOWCRANK LOST WARNINGBATTERY VOLTAGE HIGHCYLINDER DROPOUTBATT CHG FLTCYLINDER DROPOUT CODESAUX INPUTECM WARNINGSATS PHASEROTFAULTSBrowse all Rehlko fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for COOLANT LVL LOW SHUTDWN on your specific Rehlko unit — cited to the OEM manual, not a forum guess.Your question about COOLANT LVL LOW SHUTDWNGET THE ANSWERFree account required — we'll bring your question with you.