Fault Codes/Generac/MGeneracMUnclassifiedGeneralWhat This Code MeansActive FaultPossible Causes•ECODESuggested Actions1View Fault CodesRelated Generac Fault CodesOL - OPEN CIRCUITOL 014428LOW VOLTS REMOVE LOADOL 014431INVALID FILEOVERLOADFUSE PROBLEMOVERLOAD REMOVE LOADFTRED LED ALARMFILE NOT FOUNDSERVICE ABrowse all Generac fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for M on your specific Generac unit — cited to the OEM manual, not a forum guess.TRY IT FREE