Agilent Technologies G1367A Reference Manual page 92

3
Troubleshooting and Test Functions
Table 17
Step Function
Needle
Mainpass
Needle Up/Mainpass
92
Step Failures (continued)
Probable Failure Modes
Defective or dirty sensor on the sampling-unit flex board.
Sticking needle-arm assembly.
Defective needle-drive motor.
Valve not connected.
Defective injection valve.
Blockage in the sample loop or needle (no solvent flow).
Defective or dirty sensor on the sampling-unit flex board.
Sticking needle-arm assembly.
Defective needle-drive motor.
Valve not connected.
Defective injection valve.
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