Fault Codes/Basler Electric/F1Basler ElectricF1UnclassifiedElectricalWhat This Code MeansVoltage buildup does not occur; Regulator damagePossible Causes•Incorrect polarity of the DC source•Flashing the field when the generator is in motionSuggested Actions1Verify the polarity of the DC source and repeat the field flashing steps with the prime mover at rest.2Do not flash the field when the generator is in motion.3Perform the field flashing procedure only when the prime mover is at rest.Related Basler Electric Fault CodesF2Browse all Basler Electric fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for F1 on your specific Basler Electric unit — cited to the OEM manual, not a forum guess.TRY IT FREE