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agilent 7890A sudden power off
Posted: Sat Oct 08, 2016 2:20 am
by chem.eid
Hello,
I have a problem that my Agilent 7890A GC had suddenly powered off and when i tried to turn it on it goes off after the self-checking and displaying the Agilent technologies logo. What can I do ,please?
Thanks
Re: agilent 7890A sudden power off
Posted: Sat Oct 08, 2016 8:18 am
by uzman
A '' thermal shutdown '' error may cause this , possible causes : faulty cooling fan ( at the back of the injection port ), faulty temperature sensor or heating element.
Re: agilent 7890A sudden power off
Posted: Sat Oct 08, 2016 5:32 pm
by dblux_
Hello,
I have a problem that my Agilent 7890A GC had suddenly powered off and when i tried to turn it on it goes off after the self-checking and displaying the Agilent technologies logo. What can I do ,please?
Thanks
Is Agilent logo the only information from GC display ?
Any information about Power On Selftest ?
Re: agilent 7890A sudden power off
Posted: Sat Oct 08, 2016 6:15 pm
by chem.eid
Thank you guys for the quick support
this is what happens at the self-test
then the Agilent logo displayed then the device turns off
no other notifications are displayed
there is 2 red and 1 orange lights at the back of the device
I don't know what does this mean ?
Re: agilent 7890A sudden power off
Posted: Sat Oct 08, 2016 8:39 pm
by dblux_
I was hoping for a kind of error notification on the display.
Unfortunately selftest won't help with diagnosing.
Re: agilent 7890A sudden power off
Posted: Sun Oct 09, 2016 12:10 am
by chem.eid
so does this problem require changing the hole main board of the device ?
Re: agilent 7890A sudden power off
Posted: Mon Nov 07, 2016 7:14 pm
by Jake
As mentioned in the other thread, can you please check your line voltage?
John
Re: agilent 7890A sudden power off
Posted: Wed Aug 02, 2023 6:43 pm
by peter36.england
Did you find the problem,?
We have same error too and led on the back side turn on . It seems thermal shut down.
Re: agilent 7890A sudden power off
Posted: Wed Aug 09, 2023 5:42 pm
by mathieu_stability
This problem will require the replacement of the GC mainboard.