QSC 8.3 CM554 - No Start hard to diagnostic

[J99]

After another start attempt with the Transient Suppressor unplugged, it finally fired up for good ! Error 539 (open circuit on transient suppressor, possible ECM damage...), but expected.

After 2 good restarts without it, plugged it again, and it also worked fine ! No more error 276 or others.

So I guess my last main change with the Stator of the Injection Control Valve was the good one...hopefully ! Until next chapter of the long story of CAPS pumps issues...