Fault Codes/Gillette Generators/FLASHING RED LIGHTGillette GeneratorsFLASHING RED LIGHTUnclassifiedElectricalWhat This Code MeansBattery will not be charged; Bank will not operatePossible 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•Battery may be damagedRelated Gillette Generators Fault CodesNFPA 110 ALARMSOVER & UNDER VOLTAGEFLASHING RED AND GREEN LIGHTSRED LIGHTFLASHING RED AND GREENFLASHING REDEBATTERY FAULT ALARMBATTERY FAULT1HBVHIGH AMBIENT TEMPBrowse all Gillette Generators fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for FLASHING RED LIGHT on your specific Gillette Generators unit — cited to the OEM manual, not a forum guess.Your question about FLASHING RED LIGHTGET THE ANSWERFree account required — we'll bring your question with you.