[Elecraft] K3 power error

[Peter]

Hi

My K3 has a strange behaver on out output Hf power
When start a transmitting in a carrier mode (e.g. Cw or FSK rtty) there 
is an output peek above the power level  have set.
Also when transmitting around 30-40 watt range there are short burst of 
power up to 80 watt. The build-in RF meter shows those peeks too.
There is a noise coming out of the compartment of the KPA3 when this 
toke place.

A close inspection of the KPA3 doesn't show any thing strange.

Any idea where to look at?

Peter
PC2A