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