Troubleshooting - Agilent Technologies InfinityLab LC Series User Manual

7
Troubleshooting and Diagnostics

Troubleshooting

Troubleshooting

If the autosampler is unable to perform a specific step due to a hardware
failure, an error message is generated. You can use the injector steps to do the
injection sequence, while observing how the instrument responds.
page 156 summarizes the injector steps, and lists the associated error
messages and probable causes of step failures.
Table 16
Step Function
Bypass
Piston Home
Needle Up
Vial to Seat
Draw
Needle Up
156
Step Failures
Probable Failure Modes
Valve already in bypass.
Valve not connected.
Defective injection valve.
Defective or dirty sensor on the hydraulic unit flex board.
Defective metering-drive motor.
Needle already in the upper position.
Defective or dirty sensor on the needle station flex board.
Sticking needle-arm assembly.
Defective needle-drive motor.
No vial in selected position.
Vial already in seat position.
Defective transport assembly motors.
Sticking transport assembly.
Defective gripper assembly.
Gripper not aligned (see
Sum of all draw volumes exceeds 100 µL.
Defective metering-drive motor.
Needle already in the upper position.
Needle already in the upper position.
Defective or dirty sensor on the needle station flex board.
Sticking needle-arm assembly.
Defective needle-drive motor.
Agilent InfinityLab LC Series Vialsamplers User Manual
"Automatic Referencing"
Table 16 on
on page 151).