Check Circuit Breaker

[Martin]

Elecrafters,
the K3 all of a sudden shut down twice during my vacation/portable
operation. I thought i had identified the problem by tightening a loose
wire in a 220V-outlet of my /p home.

Now it shut down a third time (i believe the refrigerator turned on the
same moment) and this seems to be a tough one.

The display shows 12V ERR on transmit , the power will not go above 12
Watts and when i set it above 12 Watts i see 12V ERR , CHECK CIRCUIT
BREAKER. The Fan runs continuosly at mid-level.

Where to start? The only gear for measuring is a DMM here.

BTW: The Switcher PSU delivers rock solid 13.8 Volts.
There is no way to reload the Firmware right now, i have no cable  here.


--

Ohne CW ist es nur CB...
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[Elecraft mailing list]

Do you have a Dummy Load?
By transmitting into a DL, you will eliminate or confirm
the presence of Common Mode Current, or any Antenna
related problems.
You also have the DMM, you can check for Voltave drop.

Best of luck.


((((73)))) Milverton.


On Friday, April 25, 2014 11:50 AM, Martin <[hidden email]> wrote:
 
Elecrafters,

>the K3 all of a sudden shut down twice during my vacation/portable
>operation. I thought i had identified the problem by tightening a loose
>wire in a 220V-outlet of my /p home.
>
>Now it shut down a third time (i believe the refrigerator turned on the
>same moment) and this seems to be a tough one.
>
>The display shows 12V ERR on transmit , the power will not go above 12
>Watts and when i set it above 12 Watts i see 12V ERR , CHECK CIRCUIT
>BREAKER. The Fan runs continuosly at mid-level.
>
>Where to start? The only gear for measuring is a DMM here.
>
>BTW: The Switcher PSU delivers rock solid 13.8 Volts.
>There is no way to reload the Firmware right now, i have no cable  here.
>
>
>--
>
>Ohne CW ist es nur CB...
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:[hidden email]
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
>Message delivered to [hidden email]
>
>
>

______________________________________________________________
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[Martin]

Elecrafters,
thank you for your replies.

It turned out the faston plugs did not make a good contact to the
circuit breaker. So rocking them a little cured the problem.

Phew!


For those who asked: The serial number is 2878. I built this radio in
2009 .

--

Ohne CW ist es nur CB...
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