[Elecraft] No Pwr out 20M

[Jim Kennedy]

Hi all, I'm new to the list. Just turned on my K3 and noticed I have no power out on 20 meters. I have performed all the normal trouble shooting stuff. The transmitter is fine on all other bands and has normal 100w output on a Bird 43 and Bird dummy load. It makes no difference if the rig is in bypass or ATU. It flashes HI SWR. I also put it on one of my antennas on another band and the tuner performed as it should. I suspect the ATU has gone wacky but wanted to consult here just on the off chance I may have missed something. Any input would be appreciated before I take a deep dive into the tuner. Thanks in advance for any help. 

Jim 
W7OUU