What is the reason of "FAN 3A FAILED"?


Model:TH940
Fan Status is down,what is the reason?

Hi,
My customer’s device (TH940 / 4.1.4-GR1-P1) has the same issue.

Apr 15 2019 01:55:56 Info    [SYSTEM]:Fan 3A is OK. Current value is 5640
Apr 15 2019 01:43:58 Critical  [SYSTEM]:Fan 3A failed. Current value is 22080.

TAC confirmed a HW RMA process at the time.
But, personally I cannot completely rule out the possibility of SW bug on monitoring the fans because I experienced the bug of monitoring the fans on 2.7.1-GR1 & TH930 for 3 years. That was a bug at the time and We are a problem on the same fan!.
I think it worth opening a case to investigate this.

Regards,

I think u re right.

Hi
I was worried it might be a bug.
Please share the result from your case in here community.

Techsupport tell me it is a bug,it happens in model TH940/TH1040 with version 4.1.4-GR1-P2 or produce before 2019-08-01,we need to upgrade the version of Embedded Controller to ec1.26 or later,it maybe fix this issue.

Could you share the bug ID?
Thank you.

I got the bug ID 484471.,
Thanks.

How to query the bug id?

I checked it in the 4.1.4-GR1-P3 RN.

Can u share the  4.1.4-GR1-P3 RN to me?
My e-mail is hzq@a10network.cn

I think you are a A10 partner.
If you are a A10 partner, you can get it from https://documentation.a10networks.com/index.html.