Troubleshooting 3
Contents
1 Concepts and General Tasks
Concepts 8
How to troubleshoot using this manual 8
The [Status] key 8
Configurable Items to Always Keep Current 9
Column configuration 9
Automatic Liquid Sampler configuration 9
Gas configuration 9
Information to Obtain Before Calling Agilent for Service 10
2 Hardware Symptoms
Plunger Errors 12
Vial Mishandled by ALS 13
Syringe Needle Bends During Injection into Inlet 14
FID Does Not Ignite 15
FID Ignitor Does Not Glow During Ignition Sequence 16
Corrosion in FID Collector and Ignitor Glow Plug 17
FPD Does Not Ignite 18
NPD Adjust Offset Process Fails 19
3 Chromatographic Symptoms
Retention Times Not Repeatable 22
Peak Areas Not Repeatable 23
Contamination or Carryover 24
Isolate the source 24
Check possible causes—all inlet and detector combinations 24
Larger Peaks Than Expected 25
Peaks Not Displayed/No Peaks 26
Table 1. Detector troubleshooting 26
Baseline Rise During Oven Temperature Program 27
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