92 1100 Series WS MWS Reference Manual
3 Troubleshooting and Test Functions
Needle Defective or dirty sensor on the sampling-unit flex board.
Sticking needle-arm assembly.
Defective needle-drive motor.
Mainpass Valve not connected.
Defective injection valve.
Needle Up/Mainpass 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.
Tabl e 17 Step Failures (continued)
Step Function Probable Failure Modes
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