[Elecraft] K3 SHUTTING DOWN OPERATING JT65

[buddy s]

i am using wsjt-x software for jt65 using my k3.  after operating for
approximately 2 hours today,  i answered a cq, and after 30 seconds the k3
shut down completely.  i waited a few minutes and changed antennas.  the k3
powered up, and i tried again.  same result, shutdown after 30 seconds of
transmitting.  my power is set to 30 watts, and i am using a kat500 with
both antennas.

any suggestions, any questions?

73 de
W3BS, Buddy Spiegel