Harbor breeze remote.
Hunter fan with no chain.
Fan currently only turns in one direction, but in the instructions to the Harbor Bay remote it states the following : "Turn fan off at wall switch and let blades come to a complete stop before manually activating the reverse stitch."

Where is the reverse switch. Al I see is a fan "on/off" button, a light dimming button, and an LCD. I have remote model # RC-104L.

Please help

The reverse switch is usually on the fan. It's a sall black switch that points up or down. It's rare to find one on the remote.

Look at the leading front edge of the hand held remote, right near the small red light. You may see a very small button, press and hold it for 3 seconds.

Sounds like you don't have the correct remote for your fan. Contact Hunter Fan Ceiling Fans, Air Purifiers, Humidifiers, Thermostats and order the correct remote.