[Elecraft] sidetone

[Chris Waldrup]

I have just started working on my CW so that I can better help out at FD next year rather than just do SSB.  I am working on CW practice in the evenings with a guy in my QRP club. However, I have noticed that when I hit the key, I hear nothing from the K2.  I am having to turn on my SWL receiver to get a sidetone.
I went to the menu and saw a settting that said StL040.
I wasn't sure if this is sidetone level or not, and changing the value up to the mid 200's didn't seem to get me a sidetone so it was changed back to 040.  Headphones were tried but no sidetone was heard in them either. 
Does anyone know what I am doing wrong?

Chris