"Seal force sensor h/w fault" with ACQUITY SM-FTN - WKB49431

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Article number: 49431

SYMPTOMS

"Seal force sensor h/w fault" (numbers vary from 6.0 to 10.0)
SM-FTN fails to initialize
Cannot reset communications

ENVIRONMENT

ACQUITY UPLC H-Class
ACQUITY UPLC I-Class
ACQUITY SM-FTN

CAUSE

The spring inside the wash station is stuck or possible salt deposit causing it to be stuck .

FIX or WORKAROUND

Remove wash station and disassemble and clean if needed.
Ensure that the spring in the wash station is positioned around the three prongs.
If the inside of the wash station or spring is damaged or corroded consider replacing the entire assembly part number (700005226 or 700009226)
Run characterize needle seal after the repair. Consider also running the needle seal readiness test

ADDITIONAL INFORMATION

id49431, A-30SM, comms, UPARBSMFTN, UPARPFTN, UPARSMFTN, UPIBSM, UPIBSM+, UPISMFL, UPISMFL+, UPISMFTIVD, UPISMFTN, UPISMFTN, UPISMFTN+, UPPFTN, UPQSM, UPQSM+, UPQSMBIO, UPQSMBIO+, UPSMFTN, UPSMFTN, UPSMFTN+, UPSMFTN+, UPSMFTNB+, UPSMFTNBIO