Sorry if this is really trivial, or has asked before, but I can't seem to find an answer.
I just bought a new light switch for the laundry room in the basement. It is a Leviton brand which has a bunch of buttons to give you a predefined amount of "on" time for the light - i.e. you hit the "10" button for 10 minutes of light.
The switch has 4 wires: Black, white, green, blue. The old basic switch has 2 wires - black and white. The wiring diagram from Leviton shows multiple wires coming in from the top and bottom of the switch box, and how to wire things appropriately.
My old switch has only the two wires: black and a white.
I assume the new switch green goes to the grounding screw on the box. I also assume the white should be joined to the white, and the black to the black, each through Marrs connectors.
What do I do with the blue. I've tried a couple of things (joining it in with the blacks) which powers the switch properly (it has LEDs that show which timer setting is in use) but the light doesn't go on - which is really the whole point of a switch....
What should I be doing?