I don't have any instructions, mine came used at auction and the other one I have is also used, borrowed from a friend. You don't have any eggs in it, right? If I were you I would crank that baby ALL THE WAY up and see if it heats at all, you can always back it down and tweak it ever 10-15 minutes for a couple of hours if that does the trick.
A very frustrasting hatch, not sure if this is just because they are my first cross-country shipped eggs or if I had humidity or something wrong. Out of 15 eggs we ended up with 3 chicks: 2 blue and 1 splash, another blue drowned while unzipping, one pipped internally and died, and 3 others were fully formed but never pipped.
