From the ceiling a red, black, white and ground wire extend to my ceiling fan. I connected the white wire from the ceiling to the white wire of the remote receiver marked AC IN N. I connected the black wire form the ceiling to the black wire from the receiver marked AC IN L. I connected the blue wire from the receiver to the blue wire to the fan. I connected all green wires to the ground wire extending from the ceiling.

Where do I connect the remaining red wire extending from the ceiling?

Cap it off, do not use

If for some reason it doesn't work, connect AC IN L to the pink (red) instead of the black.

Cap off any unused wires.

Ceiling fan wiring - Ceiling Fans N More