Tried to install a ceiling fan to replace a

Trip the breaker and verify that the fan/light will not operate. If tripping the breaker kills the circuit and flipping the wall switch would not, the switch is probably bypassed. Place the wall switch to "off" with the breaker tripped to the "off" position as well. Gain access to your wiring connections at the fan. Look for a single (black) wire that is not connected. This should be your hot return from the wall switch Make your fan/light connections to this wire. (Are you sure that the ground wire that you connected is a ground? If it is, it should be bare copper with no insulation). Your white (neutral) connection to the three white wires should be fine. If you don't find a single wire in the ceiling box, call on an electrician. Regards --WoobieDog--