When removing the battery, check the marks for the polarity of the battery connection, otherwise mark the marks.
If the LED does not light up when turned on, replace the battery.
1. Remove the cover with a small screwdriver.
2. Remove the two screws and remove the cover.
3. Insert a new battery, orienting the poles "-/+" same as the removed battery.
4. Attach the battery cover. Close the lid until you hear a distinct click.
5. If necessary, initialize a new remote control, refer to Section Remote control initialization.