I was trying to install a "recycled" ceiling fan/light fixture and when I took the old fixture off I saw 3 white wires bundled together. The white wire from the old fixture was attached to that bunch and the black was on black. When I test the wires, 2 of the white wires run the electricity on the 2 opposite walls but only work when bundled with one of the other white wires. When I attempted connected the celing fan/light I tripped the box. My basic connection was black to black and white to 3 whites. A friend told me the ceiling fan was wired wrong itself, should I believe him? If I buy a new ceiling fan and do the same connection will I trip the box again?