[Elecraft] How do I make my K3 go to HP (100 W)

[W3CP]

The K3 went to LP yesterday without me knowing it. I was surprised that no 
one on the QCWA CW net could hear me until I finally looked at the power 
meter.  When CONFIG TX GN is examined, it says LP but I don't find a way to 
make it go to HP. If the PA has failed the K3 didn't tell me.

I had planned on using the K3 for the 7th Call Area party tomorrow, and I 
hope some one can help this over-the-hill operator understand how to use 
this radio.

73,  Jim  w3cp