Fault Codes/Gillette Generators/FLASHING REDGillette GeneratorsFLASHING REDUnclassifiedElectricalWhat This Code MeansBank will not charge; Bank will not operate; Battery will not chargePossible Causes•Battery voltage is above 18 volts•Damaged temperature sensor on the output cord•Battery voltage does not rise above 10.5V after 3 hours•Charging in Bulk Mode exceeds 20 hours•Damaged batteryRelated Gillette Generators Fault CodesFLASHING RED AND GREENFLASHING RED AND GREEN LIGHTSEFLASHING RED LIGHTBATTERY FAULT ALARMNFPA 110 ALARMSBATTERY FAULTOVER & UNDER VOLTAGE1RED LIGHTBrowse all Gillette Generators fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for FLASHING RED on your specific Gillette Generators unit — cited to the OEM manual, not a forum guess.TRY IT FREE