F1

UnclassifiedGeneral

What This Code Means

Electronic protection activation (excitation current returns to approximately 1A after 10 seconds of excitation ceiling current)

Possible Causes

  • •Overload
  • •Short-circuit opening on voltage detection

Suggested Actions

  1. 1Stop the alternator to reset the protection
  2. 2Switch off the power to reset the protection

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for F1 on your specific Doosan unit — cited to the OEM manual, not a forum guess.

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