I have a hampton Bay ceiling fan with remote no pull strings. I need to reverse the blades to go the other way to cool the room. I don't see any switch on the fan or remote to change the direction.
Does anyone know how I could do this?

Sometimes fans that have no switch and nothing on remote, some require to Push or pull and turn to other angle, Motor rotates same direction.

Not true, those fans will always have a pullchain, not a remote.

Either the remote will have a reverse button, or it is somewhere on the fan body. If the blades are running backwards (clockwise) you know it is reversible.