At page 12 of the manual, it says to install the power switch with the "white dot facing the front of the chassis".
Don't make the same mistake: on the switch that I got, there was a white dot [more precisely a white circle] and a bar on the other end. I made the mistake of installing the switch upside down....the white dot [or white circle] is actually the OFF position. I should have known better, but I mechanically followed orders and put the "dot" in the wrong place. Took me a few worried minutes when I first plugged it in to discover the mistake.
Guy