Agilent Technologies 1290 Infinity II - Writing the Pump Encoder Tag Failed; Pump Drive Blocked or Encoder Failed

1290 Infinity II High-Speed Pumps User Manual 122
7 Error Information
Pump Error Messages
Writing the pump encoder tag failed
Error ID: 22405
Writing the pump encoder tag has failed.
• Parameter: 1 – 4 referring to pump drive
Pump drive blocked or encoder failed
Error ID: 22406
Pump drive blocked or encoder failed.
• Parameter: None
Probable cause Suggested actions
1 Defect connection between encoder and
main board.
Please contact your Agilent service representa-
tive.
2 Defect tag.
Please contact your Agilent service representa-
tive.
Probable cause Suggested actions
1 Blockage of system before pressure sensor.
Check for blockage of e.g. outlet valve filter frit,
purge valve, heat exchanger.
2 Drive encoder failed.
Please contact your Agilent service representa-
tive.