[Elecraft] K3 output power failure.

[Bob McGraw K4TAX]

What was the PA temperature?   And how are the fans set in the CONFIG menu.  

Bob, K4TAX


Sent from my iPhone

> On Jan 6, 2020, at 12:15 AM, Eric Rosenberg <ericrosenberg.dc at gmail.com> wrote:
> 
> In the middle of the ARRL 160 contest, my K3 stopped putting out any RF. No  explanation that I can think of... all of a sudden, ZERO watts out when the radio was keyed, either by software (N1MM+ or WSJT-X) or pressing the TUNE button. The TX LED was lit, the meter showed audio, which I could hear via the radio MON.
> 
> I could not get it to come back. I shut it off for a couple of minutes and then it came back.
> 
> Everything seemed fine until this weekend's ARRL RTTY Roundup. After being on the air for about 4 hours, once again there no was RF output (the meter said "0 watts with two dashed lines above it), The radio keyed (the TX LED went on and the meter showed audio which could be heard via the radio MON), and the meter said "0 watts with two dashed lines above it.  I disconnected everything but the antenna, and still... no change. I did a system reset. Again, no change.
> 
> I quit for he evening and came back in the morning, On a lark, I hooked it all back up, and lo and behold, everything worked as if nothing had gone wrong.
> 
> I'm stumped. I've never opened up the radio -- the only time it was opened was at Elecraft last year.
> 
> Any advice is appreciated!
> 
> 73,
> Eric W3DQ
> 
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