Agilent Technologies 1290 Infinity II - Current of Secondary Pump Drive too High; Unknown Purge Valve Type; Pump Drive Encoder Error

1290 Infinity II High-Speed Pumps User Manual 129
7 Error Information
Pump Error Messages
Current of secondary pump drive too high
Error ID: 22434
The current of the secondary pump drive is too high.
• Parameter: 2 or 3 referring to pump drive
Unknown purge valve type
Error ID: 22435
The type information of the purge valve is invalid.
• Parameter: None
Pump drive encoder error
Error ID: 22437
The pump drive encoder has generated no signal.
• Parameter: 1 – 4 referring to pump drive
Probable cause Suggested actions
1 Blockage of flow path between secondary
pump head and pressure sensor, e.g. of the
heat exchanger.
• Check for blockages in the flow path.
• Please contact your Agilent service represen-
tative.
2 Secondary pump drive is defect.
Please contact your Agilent service representa-
tive.
Probable cause Suggested actions
1 Wrong valve head installed.
Check or replace purge valve head.
2 Valve head has invalid RFID tag content.
Check or replace purge valve head.
Probable cause Suggested actions
1 Pump drive encoder is defect.
Please contact your Agilent service representa-
tive.