Fault Codes/Generac/CONTROLLER FAULTGeneracCONTROLLER FAULTUnclassifiedGeneralWhat This Code MeansPossible Message(s) displayedPossible Causes•Controller Fault•Corrupted File•File Not Found•Invalid File•Unsupported DeviceSuggested Actions1Ensure correct file types are used.2Inspect controller for faults.3Verify device compatibility.Related Generac Fault CodesCORRUPTED FILEFILE NOT FOUNDCHARGER WARNINGFTAUXILIARY SHUTDOWNFUSE PROBLEM019249INVALID FILE015350LOW VOLTS REMOVE LOAD015349MBrowse all Generac fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for CONTROLLER FAULT on your specific Generac unit — cited to the OEM manual, not a forum guess.TRY IT FREE