My 737 NGX has been working fine until today. Now, starting from cold & dark, I turn on the battery master, place APU switch to on, then onto start.

The low oil pressure light & the fault light come on. APU doesn't start. Placing the switch to start again, the fault light goes out, and the APU starts normally. This is interfering with FS2Crew PF flow. All faults are turned off, all faults cleared, and maintenance reset

 

Any ideas how to cure this please?

 

Ray

Please ignore - solved by loading C & D as default

My FS2Crew FO has trouble starting the APU for some reason. If I cycle the switch from On -> OFF -> START -> ON it always clear the Fault and starts normally.