newbie attempting ceiling fan install
The box should be as tight as possible. If it wobbles, something isn't tight, try to re-screw. The main thing is to make sure it is strong enough to support the weight of the fan. As to the wiring, I'm assuming there was only a light at this location before? That is why the wires are limited. The box should have a white wire(neutral), a black wire (hot) and a copper wire. If there is a red wire as well, that is either for a two-way swich or a seperatd wall switch for the fan part only. If you only have the three wires, white, black, copper, attach the white to white, black AND blue to the black, and the copper ... or green (ground) to the copper in the box. The only disadvantage here is that when you turn on the light, the fan will start as well. Thats why the blue wire. ( for the light only .. it's white, black and green. If fan only .. it's white blue and green. Think of it as two items in one, the fan plus the light. Hope this makes sense.