Inlet valves
The Inlet valves include Inlet valve V9-IA, V9H-IA, V9-IB, V9H-IB, V9-IAB, V9H-IAB, V9-IX and V9H-IX, as
well as Sample inlet valve V9-IS and V9H-IS.
Possible cause and actionProblem
•
Hardware error
Restart the instrument with the power switch. If this error is re-
current, generate a System error report and contact Service.
Faulty air sensor in the
valve
pH valve
Possible cause and actionProblem
•
The dummy electrode was dry when it was installed in the
valve.
1
Remove the dummy electrode.
2
Wet the dummy electrode properly with distilled water.
3
Insert the dummy electrode into the pH valve.
4
Rotate the dummy electrode before securing it with the nut.
Leaking pH valve
Module Panel
Possible cause and actionProblem
•
A Module Panel is missing and the position is left empty
Install the missing Module panel.
•
The cable between the Module Panel and the ICU is not con-
nected
Remove the Module Panel and make sure that the cable is con-
nected.
The instrument is unable to
find some of the modules
376 ÄKTA pure User Manual 29119969 AB
8 Troubleshooting
8.4 Troubleshooting: Valves
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