747-8, APU will shut down after a few minutes

[No Mod. Default plane]

After starting the APU, the APU will shut down after a few minutes.

The procedure is as follows.

  1. Battery ON
  2. Standby Power AUTO
  3. APU Start
  4. APU Gen1,2 ON
    – after few minutes –
  5. APU Shutdown

Is there anything wrong with that?
Or is it normal for an APU to only last a few minutes?

btw, if I turn on Fuel Pumps, I can start the APU again, but it still shuts down after a few minutes.

Is Fuel Pumps related to APU?

4 posts were merged into an existing topic: Engines of 787-10 ASOBO, do not start