1290 Infinity II High-Speed Pumps User Manual 130
7 Error Information
Pump Error Messages
Pump drive error
Error ID: 22438, 22439
The pump drive failed during calibration.
• Parameter: 1 – 4 referring to pump drive
Pump drive stroke blocked
Error ID: 22441
During initialization the pump defines the operation position of the pump drives
and therefore the pistons. First the pump drive moves backwards to find a
mechanical stop within the ball screw. Afterwards, pistons move forwards for
finding the maximum available stroke volume. These values are expected within
a pre-defined range. "Maximum stroke too short" means that the outer drive
position is too close. This can be caused by a drive initialization without pump
head or if the pump head has not been installed properly (screws are loose).
• Parameter: 1 – 4 referring to pump drive
Probable cause Suggested actions
1 Pump drive motor defect or mechanically
blocked.
Please contact your Agilent service representa-
tive.
Probable cause Suggested actions
1 Wiper shifted
Please contact your Agilent service representa-
tive.
2 Pump head blocks piston movement
Replace, clean or repair pump head.
3 Pump drive motor is mechanically blocked.
Please contact your Agilent service representa-
tive.