4 • Troubleshooting
Doc. 065215-02 9/09 59
• Liquid leaks at junction between pump head and pump housing
Replace the piston seal (see Section 5.7
).
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 5.13
).
• No communication between ICS-900 and Chromeleon or Chromeleon
Xpress (
Link LED on rear panel fails to light)
The USB cable is not connected correctly. For connection instructions, see the
ICS-900 Ion Chromatography System Installation Instructions (Document
No. 065214), provided on the Dionex Reference Library CD-ROM (P/N
053891) and in the ICS-900 Ship Kit (P/N 067768).
4.5 No Flow
• Pump not primed
Prime the pump (see Section 3.6
).
• Broken pump piston
Replace the piston (see Section 5.8
).
4.6 Erratic Flow/Pressure Reading
• Pump needs priming
Prime the pump (see Section 3.6
).
• Damaged piston seal
Replace the piston seal (see Section 5.7
).
• Dirty pump check valve
Clean or replace the check valve (see Section 5.6
).