If it rocks, it is out of balance and with a poor installation it is tearing
itself loose from the ceiling. You need to do two things:
1 - You need to balance the fan, clean it first, if this doesn't work move
blades around or add special weights they sell.
2 - You need to fix the anchor so that it is solid and doesn't come apart.
There is a lot of info available on how to do this, do some research and fix
it before it falls down.

"Crackles McFarly" wrote in message
...
It's not flush with the ceiling, has about 1/8th inch all around.
It worked good for 3 months, now it's wobbling like mad.

I don't know much about how to fix or replace the box in the ceiling
the fan is attached to.

How much wobble is normal?

How can I fix the fan, box, or both?


thanks