Dionex ICS-3000 - TC Temperature Does Not Increase

ICS-3000 Ion Chromatography System
254 Doc. 065031-04 1/08
• Blocked or improperly installed line
Make sure the lines are not crimped or otherwise blocked. Also, make sure the
waste line is not elevated at any point after it exits the TC. If a line is blocked,
replace it (see Section 9.25
).
• Leaking injection valve
1. Make sure the liquid line connections to the valve are tight. Replace any
damaged fittings (see Section 9.25
).
2. Liquid leaks from behind the valve stator may indicate a scratched rotor
seal. Rebuild the injection valve (see Section 9.27
).
• Leaking temperature stabilizer
1. Tighten the fittings on the temperature stabilizer inlet and outlet.
2. If tightening the fittings does not eliminate the leak, excessive system
backpressure may be the source of the problem. Follow the
troubleshooting steps in Section 8.9
to reduce the backpressure.
8.32 TC Temperature Does Not Increase
If the temperature fails to increase as expected, although the temperature set point
has not been reached, follow the troubleshooting steps below.
• Front door not closed
Verify that the TC door is fully closed. If it is, check the door seal for signs of
damage. If the seal is damaged, contact Dionex for assistance.
• Column tubing connections incorrectly oriented
Column tubing connections that are incorrectly oriented can open a small path
for ambient air into the TC. Check that the tubing connections are at a 90-
degree angle in relation to the door seal.
• Ventilation slots on TC are obstructed
Make sure the ventilation slots are not obstructed in any way. Allow at least
6 cm (2.4 in) behind the TC for ventilation.
• Ambient temperature is too high
Reduce the ambient temperature (for example, ventilate the lab in which the
TC is installed).