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