Fan 2 is failing

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LRL
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Fan 2 is failing

Fri Aug 21, 2015 1:26 pm

It's strange I've been running 1.2.2 for quite a while and haven't had any switches complaining about fans, but over the last week I've gotten several alerts from one switch.
In the log I see "switch[743]: Fan 2 is failing"

Fan2 seems to be in line with fan1 speed wise most of the time, but it doesn't seem to rev as high. Can someone tell me what the parameters are that trigger the fan failing alerts?
-LRL

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Eric Stern
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Re: Fan 2 is failing

Fri Aug 21, 2015 2:17 pm

If the fan is turned on and the fan speed stays below 1500 rpm for 3 seconds it is considered to be failing. The code will never run the fan that slow, so if it is going that slow something must be wrong with it.

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sirhc
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Re: Fan 2 is failing

Fri Aug 21, 2015 2:35 pm

But please upgrade to newest firmware and see if the fan failure persists.
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LRL
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Re: Fan 2 is failing

Tue Sep 01, 2015 7:06 pm

I haven't seen a warning since the upgrade. I think I'll let it run and see if anything else comes up.
-LRL

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keefe007
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Re: Fan 2 is failing

Fri Oct 02, 2015 12:47 pm

I have this on a switch running 1.3.2. The failing fan RPM shows 1600 or so.

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