I have K3.... From I seen... I would re-seat as many boards / assy's as possible. Ray WA6VAB.
On Sat, May 30, 2026, 8:43 AM Mike Flowers via Elecraft < [email protected]> wrote: > Hi Steve, > > I had a similar situation where my K3’s receiver would go deaf > intermittently. > > I was advised to open up the K3 and ensure that all the TMP plugs were > firmly seated in their sockets. > > As I did this procedure, I did not ‘feel’ that any of the plugs was not > secure, but apparently one was. Afterwards, the problem has not > reoccurred. > > It’s easy to do, harmless if you’re careful, and worth a shot. > > -- 73 de Mike Flowers, K6MKF, NCDXC - "It's about DX!" > > > On May 30, 2026, at 08:31, Steve Mollman via Elecraft < > [email protected]> wrote: > > > > > > Intermittent no power out ontransmit. My K3 has developed an > intermittent problem of no power output whenin transmit mode. > > > > 1. The situation occurs in all modes (CW, Data and SSB) atrandom > times varying from 15 minutes after turning the unit on to an hour or > solater. The “TX” LED lights and there is a side tone but no power out > isgenerated. > > > > 2. I am sometimes (but not always) able to restorefunctionality by > cycling the unit off and then on. If that doesn’t work,turning the unit > off and letting it set for about an hour usually restoresfunctionality. > > > > 3. Switching antennas and using a dummy load results in nochange. > The no power out situation persists. > > > > The unit is factory built, servicedand upgraded to most K3S standards > and equipped with the second receiver ATUand additional filters. The gold > contacts were factory installed. > > > > I did talk to Elecraft about it andtheir only suggestion was to tighten > the screws on the bottom of thecase. The screws were all tight and there > was no change. > > > > I have always hated intermittentfailures as they are usually very > difficult to isolate. Does anybody haveany ideas? > > > > Steve Mollman-KD9HL > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[email protected] > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to [email protected] > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
