[Elecraft] My K3 on show no longer works properly

Hello everyone , My K3 does not work properly in tuning, I explain myself, even on fictitious load in a totally random way, it happens to me from time to time on the bird in series between transceiver and charge to me well out 100 w my with many tunes, I have a lot of ros back during the tests,

[Elecraft] K3 ATU problem

Hello everyone ! , I have a problem that suddenly happened, my atu on my k3 does not work more correctly! we can hear him agree, but it's like she does not find him as a result, the ROS remains high, regardless of the bands. Everything else seems to work well Maybe a manipulation to do reset