Agilent 7683B Tower problem

[kev howell]

We are having an intermittent problem with our Agilent 7683B autosampler.

Now and again when I start a sequence the Fault light comes on and flashes twice in a row repeatedly.

Can anyone tell me what this fault means?

[skunked_once]

From the HP 7673 autosampler manual.

Syringe carriage motor problem.
Syringe carriage cannot find its home position.
Syringe carriage sensor is inoperable.
Improper injection mode.

Suggested actions (paraphrased):

Check for proper syringe type and proper syringe installation.
Check on-column injection mode and check for damage to the inlet liner and column.
Press the STOP button to clear the fault and restart the sequence.