Doosan

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

Related Doosan Fault Codes

F3FUEL LEVEL DELENGINE TEMP DELISHORTCURR UNBAL DELISHORT DELBATTVOLT DELNEXTSERVTIME [H]BATT UNDERVOLTOVERLOADBATT OVERVOLTOVERLOAD DEL
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Get a diagnosis walkthrough for F1 on your specific Doosan unit — cited to the OEM manual, not a forum guess.

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