Dear OMs,

I work my DX10 with an EFHW on 40/20/15/10m and a 1:64 Balun. Tuning was working fine for a while and I had rapports 55 to 59 within Europe. I never saw the "High SWR" warning in the display, worked SSB only and did either have SWR or Power displayed in the meter. I also checked operation with a chain of power attenuators. SWR 1.1 or less here without tuning.

After Power up I can tune on the band where it is with the normal long relais klicking and also transmit with full power. When I switch the band eg. 7MHz to 14MHz and press the tune button long there is only a short relay click and tuning ends. No error message, it's just back in rx. With a short press I can switch tuning on/off.
Now in this case there is no TX power output. When I try to send the TX light is on, power setting is at 100W but the power meter is fixed at zero.

After a complete system power cycle I can transmit again with full power. The Device is ~3 Month old, nothing gets hot, all is clean. AS said above I get the same with antenna and attenuator at the output.

Anybody an idea?
Is there a way to delete stored tuner data only?
I received the info to try a factory reset, but this would also kill my audio settings I did several weeks ago.

73 DC0LA