- No flow from QSM
- No pressure readback in the console
- When priming through the console, no flow is seen from the vent valve tubing
- Or priming is fine and flow is normal before going to column but no flow after column
- ACQUITY UPLC H-Class
- ACQUITY UPLC H-Class Quaternary Solvent Manager (QSM)
- ACQUITY UPLC H-Class Bio
- ACQUITY UPLC H-Class Bio Quaternary Solvent Manager (QSM)
- ACQUITY Arc
- ACQUITY UPLC BSM
- ACQUITY UPLC I-Class
The primary and/or accumulator pump is leaking.
FIX or WORKAROUND
- Rebuild the primary pump (H-Class/Classic: 700004747 H-Class Bio: 700010581 Arc 700011072 I-Class: 700010583) and/or accumulator pump (H-Class/Classic: 700004746 H-Class Bio: 700010582 Arc 700011073 I-Class: 700010584).