Agilent Technologies 7890A Troubleshooting Manual page 10

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Concepts and General Tasks
Concepts
How to troubleshoot using this manual
The [Status] key
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This manual provides lists of symptoms and corresponding
tasks to perform should you experience errors associated
with GC hardware or chromatographic output, GC Not Ready
messages, and other common issues.
Each section describes a problem and provides a bulleted list
of possible causes for you to troubleshoot. These lists are not
intended for use in the development of new methods.
Proceed with troubleshooting under the assumption that
method(s) are working properly.
This manual also includes common troubleshooting tasks as
well as information needed prior to calling Agilent for
service.
Use the following steps as a general approach to
troubleshooting:
Observe the symptoms of the problem.
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Look up the symptoms in this manual using the Table of
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Contents or the Search tool. Review the list of possible
causes of the symptom.
Check each possible cause or perform a test that narrows
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the list of possible causes until the symptom is resolved.
Be sure to also use the [Status] and [Info] keys on the GC
keypad while using this troubleshooting information. These
keys will display additional useful information related to the
status of the GC and its components.
Troubleshooting