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No solvent pulled through on a dry prime of 2695 or 2795 - WKB3408

Article number: 3408

SYMPTOMS

  • When performing a dry prime, no solvent is pulled through into the priming syringe. 

ENVIRONMENT

  • Alliance HPLC System
  • 2695 Separations Module
  • 2695D Dissolution Separations Module
  • 2795 Separations Module

CAUSE

Check valve malfunction.

FIX or WORKAROUND

  1. Sonicate the check valves
  2. If sonication doesn't work replace check valves

ADDITIONAL INFORMATION

If sonicating the check valves does not work, replace the check valves. Procedure for replacing check valves is found in the maintenance section of the 2695 Separations Module Operator's Guide 

See Article WKB4427: No flow on Alliance or 1525 pump when priming

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