Why doesn't the volume work?
You can control the volume from within a workout. Tap the screen, and at the bottom of the screen you will see a volume control option.
Some of the Kiosk screens have a volume shut off button installed on the back-left side of the screen. If you cannot get the volume to work reach behind the screen and check for the button, and make sure it is switched in the proper direction.
For Bluetooth pairing issues please search this FAQ for "Bluetooth".