Troubleshooting
Vial Handling Problems (G1289/G1290 only)
119
Unwanted Peaks Present
Possible Causes
• Dirty vials or septa.
• Dirty laboratory air sealed in the vial with sample.
• Carryover from the previous sample.
• Contaminated GC system.
• Dirty column and/or ferrules.
Suggested Actions
1. Bake the vials and septa in oven.
2. Flame the vials before use.
3. Wash the vials and septa and then dry them in the oven.
4. Purge the vial with argon during sample preparation.
5. Steam clean the headspace sampler. See “Steam Cleaning the Pneumatic
System” on page 95.
6. Perform a blank GC run; clean or bake out the GC.
7. Heat the graphite GC–column ferrules with a flame before use.
8. Call Agilent service.
Vial Handling Problems (G1289/G1290 only)
Gripper Arm Doesn’t Pick Up Sample Vial
Probable Causes
• Arm movements out of adjustment.
• Spring lock and spacer out of adjustment.
• Carousel out of adjustment. See “Checking carousel adjustment” on
page 101.
• 10 ml vials used without adapters.
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