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Error during dynamic leak test: excessive back-leakage during compression - WKB28156

Article number: 28156

SYMPTOMS

  • Pump fails dynamic leak test
  • Error on accumulator pump: "excessive back-leakage during compression".

ENVIRONMENT

  • ACQUITY UPLC
  • ACQUITY UPLC H-Class

CAUSE

Failure of accumulator check valve. Ball inside is not moving.

FIX or WORKAROUND

Replace accumulator check valve 700002968

ADDITIONAL INFORMATION

 

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