Dionex As - Leaking Drain Line Connection; Leaking Inject Port; Leaking Fitting; Broken Liquid Line

4 • Troubleshooting
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4.2.2 Leaking Drain Line Connection
• Make sure the drain line is not crimped or otherwise blocked.
• Make sure the drain line is not submerged in liquid in the waste
container. Empty the container, if needed.
• Make sure the drain line is pushed tightly onto the fitting and that the
line is not elevated at any point after it exits the autosampler.
4.2.3 Leaking Inject Port
• Check for a leaking fitting and tighten.
• Check the sampling needle; if the needle tip appears worn or
damaged, replace the sampling needle assembly (see Section 5.4
).
• Check the needle seal; if the seal appears worn or damaged, replace
the needle seal assembly (see Section 5.7
).
• If fluid appears on the top of the inject port during injection, the
needle may not be reaching the correct depth in the port or may not be
aligned over the inject port. Realign the inject port (see Section 5.8
).
• Air in the needle seal assembly or in the tubing from the inject port to
the injection valve can cause continued flow after the syringe pump
has stopped. Make sure all lines are primed and free of air bubbles.
See Section B.3.13
for priming instructions.
4.2.4 Leaking Fitting
Locate the source of the leak. Tighten or replace the liquid line connection
(see Section 5.1
).
4.2.5 Broken Liquid Line
Replace the line and fittings (see Section 5.1).