[Elecraft] K3 PA temp acting up

[Don Wilhelm]

Buck,
If indeed the finals are heating while the K3 is truly in receive mode, 
then that would indicate either the PA finals have 'turned belly up' or 
that there is a failure in the bias circuits that is turning the PA 
transistors on.
First unplug everything from the K3 except for a dummy load.  Then plug 
it in and see if it still draws PA current
If you have the same problem with everything unplugged, an email to 
K3support is in order (or a phone call after they wake up and have their 
morning beverage Monday morning.

73,
Don W3FPR

On 4/27/2013 7:11 PM, Buck k4ia wrote:
> Left the receiver on overnight and when I came down this morning I 
> could hear the fan running.  That's odd.  PA TEMP 45
>
> If I turn off the power, the finals still heat up and when I turn the 
> power back on the HI TEMP warning activates, power is reduced and the 
> PA TEMP reads 105.  Only way to cool it down is to unplug the power.
>
> Any ideas?
>
>