Agilent Technologies 7890A Troubleshooting Manual page 83

GC Turns On, Then Stops During Startup (During Self-Test)
Troubleshooting
If the GC turns on but the normal display does not appear:
Turn the GC power switch Off. Wait one minute, then turn
1
the GC power On.
If the GC does not return to normal, record any messages
2
that appear on the display and contact Agilent for service.
GC Power On and Communication Symptoms
6
83