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ACQUITY H-Class FTN needle readiness test fails - WKB5554

Article number: 5554

SYMPTOMS

  • ACQUITY H-Class FTN needle readiness test fails
  • Pressure is unstable
  • Retention time is longer
  • New needle was installed

ENVIRONMENT

  • ACQUITY H-Class FTN

CAUSE

Needle was replaced without replacing the needle seat.

FIX or WORKAROUND

  1. Replace the needle seat (405011492 - SEAT, VESPEL W/ANTI-ROT).
  2. Run the needle readiness test.

ADDITIONAL INFORMATION

 

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