Can't pair Samsung S4 to Bose wireless speaker with Bluetooth

A

AC Question

Hi. I've downloaded the Bose Soundtouch app. I have been through all the instructions for set up. The App says it is ready to pair with my mobile device so I select the Bluetooth icon and it searches but cannot find the Bose system. All it is showing is 2 paired devices I used previously which are not currently in range.
Please help! Many thanks Andrea