Dionex ICS-90 - Pump Does Not Start; No Flow; Erratic Flow; Excessive System Backpressure

ICS-90 Ion Chromatography System
4-6 Doc. 031851-05 12/04
4.4 Pump Does Not Start
• No power (front door Power LED indicator fails to light)
Check that the power cord is plugged in.
Check the main power fuses and replace if needed (see Section 5.12
).
• No communication between ICS-90 and Chromeleon (Link LED on rear
panel fails to light)
The USB cable is not connected correctly. See Section B.4
for installation
instructions.
4.5 No Flow
• Pump not primed
Prime the pump (see Section B.13
).
• Broken pump piston
Replace the piston (see Section 5.7
).
4.6 Erratic Flow
• Pump needs priming
Prime the pump (see Section B.13
).
• Damaged piston seal
Replace the piston seal (see Section 5.6
).
• Dirty pump check valve
Clean or replace the check valve (see Section 5.5
).
4.7 Excessive System Backpressure
• Restriction in the system plumbing
Check all liquid lines for crimping or blockage. Make sure the ferrule fittings
are not overtightened onto tubing. Refer to Installation of Dionex Liquid Line
Fittings (Document No. 031432) for details.