Hi!
Im new here and current trying to revitalize an agilent G1956B LC-MS.
The system is pumping down and in the "Pumpdown" menu it says:
Turbo: 98% 120W (its basically stuck between 97,5 and 98%)
Rough: 1,89torr (+/- 0,1)
High: comes ON only occasionally and is in the range of 0,022mtorr
Temp: Rising, 85°C right now

Im regulary getting the message "S4 turn on requested with high foreline pressure 0802"
is 1,8-1,9torr too high of a foreline pressure? The Turbos turn on quite fast.
The system is sucking in some air through the front port at the APCI source so it isnt getting lower than 1,8torr

Its also stating that the 28V line is too low (i think that has something to do with the turbos not fully on?)
Plus the smartcard sending some shutdown signals

I can also post screenshots etc if it would help.
PS: At the beginning i had some diangostic overview screen of the pump elements that were clickable, cant really find that now anymore, if I wanna see the stats i need to click the pumdown procedure. Can somebody tell me where to find that?

I hope im posting this in the right subforum!
Thanks a lot in advance! :)