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Waters

Shifting retention times on ACQUITY I-Class within run - WKB75244

Article number: 75244

SYMPTOMS

  • Shifting retention times on ACQUITY I-Class
  • B Pump primary unable to compress when running leak test.

ENVIRONMENT

  • ACQUITY I-Class

CAUSE

Primary check valve sticking.             

FIX or WORKAROUND

Replace primary check valve. Part Number: 700004139 (ASSY, CARTRIDGE, I2V, HEXANE/THF 2 PK)

ADDITIONAL INFORMATION

Faulty accumulator check valves can also cause the same problem.

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