[Elecraft] KX3 TX Problem

[n8ag at comcast.net]

My brother, W8TXT, has a problem with his KX3. In PTT, when he presses XMIT, the KX3 puts out 3 or 4 watts with the cw key still open. When the closes the CW key it puts out 10 to 12 watts and stays at that level. In LSB, he hits PTT and gets the same 3 to 4 watts out without an mic audio. Sometimes the KX3 power out on the display agrees with his watt meter. At other times he does not see any power out indication on the KX3 display. In VOX he gets the same results however, he does see a quick "High Current" message flash up very quickly on the display when he keys it. Any ideas would be greatly appreciated. TNX es 73, Dave N8AG