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Waters

2777 leaks solvent at injector port - WKB68150

Article number: 68150

SYMPTOMS

  • Solvent backs up in the 2777/CTC injector port
  • Needle guide was replaced
  • Rotor was replaced
  • Stator was cleaned; all ports are clear
  • System pressure is normal; no blockage or restriction in the system

ENVIRONMENT

  • CTC PAL Autosampler

CAUSE

The injector valve stator is worn/scratched around the rotor, causing solvent to leak past the rotor pathways.

FIX or WORKAROUND

Replace the injector valve. The part number depends on the valve type. See the parts locator. The part number for the six-port LC valve kit is 417000145.

ADDITIONAL INFORMATION

 

id68150, 2777, 2777C, 2777IVD

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