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Posted (edited)

On startup from COLD and DARK, and trying to start the APU I received the following 3 CAS messages:

APU PUMP
APU NE-G SOV
APU PUMP

FCOM 2 says the following: see picture

However NOT how to solve the problem. APU FIRE SWITCH was NOT pushed. Aircraft restarted multiple times in non persistent. RH tank more than sufficient fuel. Also an APU reset on the external panel did not help. 
I was able to start on ASU, but not able to solve the APU problem.

So clearly my APU is not getting any fuel because the SOV is closed. But why o why is it closed? 

Any ideas?

 

APU.JPG

Edited by FYG001
Posted (edited)

Impressive Pils!

But no all CBs are in. I really have no clue. Just restarted and the 3 CAS messages are still there. Consulted with our CL650 pilots, they also have no clue... except...

Hurray, a long press on the APU exterior RESET button cleared the faults, and had the APU started.
Unbelievable this aircraft!

Edited by FYG001
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