[Elecraft] Elecraft CW Net cancelled due to power glitch

[Kevin]

Good Afternoon,
     While getting started with the twenty meter net my K3 gave out a 
clunking sound and then died.  The K2 was not set up but I got started 
with moving power and a paddle.  I have not used the K2 in a couple 
years and found the paddles were backwards.  I know I could have tried 
to run the net with the paddles upside down but that takes both hands.  
I have forgotten how to change the paddles from one side to the other 
and did not have the time to scan through the menus settings to find it.
     Now the problem : on the back of the K3 is a button marked 20. I 
think it is a resettable fuse of 20 amps.  When I push it the button 
feels quite loose and doesn't want to reset anything.  Any hints as to 
what I have blown ?
    73,
         Kevin.  KD5ONS

P. S.  I'll get the K2 menus figured out for the forty meter net so I 
can run it on time.
     KJR.