Fault Codes/Blue Star Power Systems/1Blue Star Power Systems1UnclassifiedElectricalWhat This Code MeansBattery Fault alarm active; Battery Fault LED activePossible Causes•Battery disconnected•Battery polarity reversed•Mismatched charger and battery voltage•Open or high resistance charger to battery connection•Open battery cell or excessive internal resistanceRelated Blue Star Power Systems Fault CodesCRED LEDSCR FAULT CODES2727(2)3240Q475151(2)5959(2)Browse all Blue Star Power Systems fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 1 on your specific Blue Star Power Systems unit — cited to the OEM manual, not a forum guess.Your question about 1GET THE ANSWERFree account required — we'll bring your question with you.