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- After starting, QSM reports "vacuum h/w fault"
- ACQUITY UPLC H-Class QSM
- ACQUITY UPLC BSM
- nanoACQUITY UPLC
System was not used for a while and the solvent-lines are empty or there is air is in degasser chamber.
FIX or WORKAROUND
Purge every channel several times. Error can reoccur. Reset QSM and purge again until all channels are filled with liquid.
H-Class QSM has five individual degasser chambers: 700011667 (one chamber)