Agilent Technologies 1290 - Drive Encoder failed; Drive phases differ too much in electric resistance; Degassers pressure limit violation

118 1290 Infinity Quaternary Pump User Manual
7 Error Information
Pump Error Messages
Drive Encoder failed
Error ID: 29210
Drive encoder failed during pump drive calibration.
Drive phases differ too much in electric resistance
Error ID: 29216
Pump drive calibration has failed due to a strong difference electric
resistances for different motor phases.
Degasser's pressure limit violation
Error ID: 29220
Pressure too far above the limit.
Probable cause Suggested actions
1 Internal error.
Contact Agilent support.
Probable cause Suggested actions
1 Pump drive cable defect.
Please contact your Agilent service
representative.
2 Pump drive defect.
Please contact your Agilent service
representative.
3 Defective main board.
Please contact your Agilent service
representative.
Probable cause Suggested actions
1 Leak in degasser chamber or degasser
tubing.
Please contact your Agilent service
representative.
2 Defect vacuum pump.
Please contact your Agilent service
representative.
3 Degasser chamber empty or connected to
air.
Block unused degasser channels.