Inlet valves
Possible cause and actionProblem
•
Hardware error
Restart the instrument with the power switch. If this
error is recurrent, 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 connected
Remove the Module Panel and make sure that the
cable is connected.
The instrument is un-
able to find some of the
modules
382 ÄKTA avant User Manual 29035184 AE
8 Troubleshooting
8.4 Troubleshooting: Valves
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