White wire connected to two black wires and ceiling fan?
Fans with remotes are usually meant to be wired up to an always hot wire and a neutral. So you need to take the black wire from your fan remote unit and connect it to the two black and one white wire group. Take the white wire from your remote unit and connect it to the two white wires out of the ceiling. Then cap the single black wire out of the ceiling which is probably a switched hot from a wall switch.
If you want to utilize the wall switch, connect the black wire from your remote unit to the single black wire out of the ceiling, white from the remote unit goes to the two white wires grouped. Cap the two black and one white. When the wall switch is off, the remote will not function until the switch is turned on.