Skip to main content
Waters

ACQUITY Pump: Seal wash pump is clicking continuously. Seal wash solvent is consumed quickly - WKB8438

Article number: 8438

SYMPTOMS

  • Seal wash pump is clicking continuously.
  • Seal wash fluid is exhausted quickly when pump is in use only and not while idle, indicating that the solenoid is not stuck open.

ENVIRONMENT

  • ACQUITY UPLC BSM (Binary Solvent Manager)
  • ACQUITY UPLC QSM (Quaternary Solvent Manager)
  • Classic ACQUITY
  • I-Class
  • H-Class
  • Empower 

CAUSE

Seal wash period set to 0.02 min, meaning that seal wash pump is triggered every 1.2 seconds.

FIX or WORKAROUND

  1. Change seal wash period to 5.00 minutes, which is the default setting under the Instrument Method.
  2. Save Method.

Note: For QSM, Instrument Method says Seal Wash Period. For BSM, Instrument Method says Seal Wash. (see screen shots)

 

ADDITIONAL INFORMATION

Not able to find a solution? Click here to request help.