Oh, I can't touch that or I'll be electrocuted??? Too bad I don't have a wooden-handled hammer I could use to flip the switch, or a wooden leg that fell off an old desk, or maybe some rubber boots that I could wear & kick the switch on!
Spoiler for the windowsill hint: The triangles represent the "level" that the pendulums should be at. Initial level=1. So, if you saw 1 triangle it would mean you'd leave it where it was. You'd click it once for 2 triangles, twice for 3 triangles, etc. The middle one isn't shown, so you just trial & error it once you have the other two.
Spoilers: You can't attach the handle to the faucet until after you've put the bucket under the faucet. Rope code is the icicles. Number code from boarded-up window reads clockwise starting with upper left frame. Color code is found at the top of one of the gutter downspouts.