Agilent Technologies Quaternary Pump 1100 Series - Manual (Page 71)

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Troubleshooting and Test Functions
Inlet-Valve Missing
Inlet-Valve Missing
The active-inlet valve in the quaternary pump is missing or defective.
The processor checks the presence of the active-inlet valve connector every
2 seconds. If the connector is not detected by the processor, the error
message is generated.
Probable Causes • Disconnected or defective cable.
• Disconnected or defective connection cable (front panel to LPM board).
• Defective active inlet valve.
Suggested Actions ❏ Ensure the pins of the active inlet valve connector are not damaged.
Ensure the connector is seated securely.
❏ Ensure the connection cable is seated correctly. Exchange the cable if
defective.
❏ Exchange the active inlet valve.