Fault Codes/Generac/1000Generac1000UnclassifiedGeneralWhat This Code MeansConfiguration MismatchPossible Causes•Voltage configuration set in controller does not match voltage configuration for installed Voltage Configuration Cartridge (VCC).Related Generac Fault Codes100510065062100505-J4210950521115042112503002403 (000192)Browse all Generac fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 1000 on your specific Generac unit — cited to the OEM manual, not a forum guess.TRY IT FREE