Thermo Scientific Dionex Aquion RFIC Operator's Manual page 77

Thermo Scientific
Source of leak
Pump head waste valve
Suppressor
Injection valve or auxiliary
valve
Conductivity cell
Solution
1. Verify that the waste valve is closed. To close the valve,
turn the knob clockwise and tighten finger-tight. Do not
overtighten! Overtightening may damage the valve and
the pump head.
2. If the leak persists, replace the waste valve O-ring (see
"Replacing the Waste Valve or Priming Valve O-Ring"
page 83).
Refer to the suppressor manual for troubleshooting guidance.
1. Verify that the liquid line connections to the transducer
are tight. For tightening requirements, refer to Installation
of Dionex Liquid Line Fittings (Document No. 031432).
2. If the leak is from behind the valve stator, the rotor seal
may be scratched. Rebuild the valve (see
Injection Valve or Auxiliary Valve"
1. Check for blockage in the waste line; trapped particles can
plug the lines and cause a restriction and/or leak. If
necessary, clear the waste lines by reversing the direction
of flow.
2. Verify that the plumbing downstream from the cell is
clear; a blockage may overpressurize the cell, causing a
leak.
3. If the leak persists, contact Technical Support for Dionex
products for assistance.
5
Troubleshooting
Troubleshooting System Component Symptoms
"Rebuilding the
on page 74).
Dionex Aquion RFIC Operator's Manual
on
61