Skip to main content
Waters

"Pump H/W Over Pressure" error on ACQUITY solvent manager - WKB54839

Article number: 54839

SYMPTOMS

  • "Pump H/W Over Pressure" error
  • Pressure is normal with port 5 of injection valve disconnected

ENVIRONMENT

  • ACQUITY UPLC I-Class Sample Manager - Flow Through Needle (SM-FTN)
  • ACQUITY UPLC H-Class Sample Manager - Flow Through Needle (SM-FTN)
  • ACQUITY UPLC Column Manager

CAUSE

Obstruction of injection valve

FIX or WORKAROUND

1. Replace injection valve

ADDITIONAL INFORMATION

 

id54839, A-30SM, UPBINARY, UPIBSM, UPIBSM+, UPISMFL, UPISMFL+, UPISMFTIVD, UPISMFTN, UPISMFTN, UPISMFTN+, UPPFTN, UPSMFTN, UPSMFTN+

Not able to find a solution? Click here to request help.