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Alarm - ExtFanErr

Definition: 

Cooling Fan failure by visual check


Possible Causes:

  1. Fan is blocked
  2. Fan service life has expired
  3. Fan socket connecter has poor contact.


Solutions:

  1. Observe for 5 minutes and see whether the alarm will be eliminated automatically
  2. Check for foreign objects on fan blades
  3. Switch off 3-phase power supply and then reboot the system
  4. Contact after-sales personnel

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