Originally Posted by
Bluedriver
Makes sense as restarting the APU and letting it go through a complete shutdown before turning off the batteries can sometimes clear on erroneous APU LOW OIL message.
What is the theory behind waiting 3 mins to bleed the APU? I like the 4 min hack for starting.
Thanks guys, this has been helpful and still looking forward to more input.
The official answer it the 3 minutes allows the seals to reach “optimum performance” and should eliminate trace oil in the ducts…so less chance you smell something from oil getting into the system