K3 Error Message "ERR AT3"

[w7aqk]

Hi All,

Early on my K3 (#96) had an issue where it would not turn off without
removing all power connections.  This ultimately required a trip back to
Elecraft to resolve the problem.  That problem was fixed, but ever since
I've continued to have periodic error message problems--specifically, I will
sometimes turn on my K3 and get the error message "ERR AT3".  When this
happens, my ATU is not recognized.  Usually I can "resolve" this by
disconnecting the K3 from all power, waiting a while, then re-connect.
Sometimes though, it takes several such maneuvers, and can take as much as
an hour or two before it works.  It just happened again, but only took a
minute or two to resolve.

Has anyone else had a problem like this?  Any ideas on how to fix it?

Dave W7AQK


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[GW0ETF]

Hi Dave,

I too get this intermittently on my K3 #145. Probably been more frequent of late and also disables the ATU though oddly it still responds to checking/adjusting the LC settings from the menu ok - you can hear the relays clicking but press the ATU button or ANT1/2 and no response...

However up till very recently I wouldn't get just ERR AT3; instead I would get a whole series of random error messages which would include AT3...eg BP1,IO3,AT3,BP3,IF2. When I cancelled each in turn by pressing buttons to get back to 'normality' the only thing that seemed to be not working was the ATU and if I recall correctly occasionally the Noise Blanker too; otherwise all worked fine. Last couple of times though just the one error (AT3) has appeared like you report.

Checked the AT3 seating and OK; also never had any problems with turning off so maybe that's just coincidence with you. I did check with support a while ago and suggested checking the KAT3 board seating - not a show stopper but certainly is weird.

73,

Stewart Rolfe, GW0ETF

David Y. wrote

Hi All,

Early on my K3 (#96) had an issue where it would not turn off without
removing all power connections.  This ultimately required a trip back to
Elecraft to resolve the problem.  That problem was fixed, but ever since
I've continued to have periodic error message problems--specifically, I will
sometimes turn on my K3 and get the error message "ERR AT3".  When this
happens, my ATU is not recognized.  Usually I can "resolve" this by
disconnecting the K3 from all power, waiting a while, then re-connect.
Sometimes though, it takes several such maneuvers, and can take as much as
an hour or two before it works.  It just happened again, but only took a
minute or two to resolve.

Has anyone else had a problem like this?  Any ideas on how to fix it?

Dave W7AQK


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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[e-mail]

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Please help support this email list: http://www.qsl.net/donate.html