GC Not Ready Symptoms 4
Agilent 7890 Series Troubleshooting 93
Oven Never Heats Up
• Press [Status] to check for errors to report to Agilent.
• Power cycle the GC.
• Check oven flapper operation.
1 Increase oven temperature by at least 20 degrees.
2 Verify that the oven flaps in the back of the GC are closed.
The figure below illustrates the location of the two oven
flaps.
If the flap is stuck open or if the flaps are closed and the
oven still does not heat, contact Agilent.
The exhaust coming from the back of the GC is very hot. Keep
hands and face away from the exhaust vent.
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