FOund the steps from Ecotech support.
Here they are just in case someone else needs it.
The pump WILL turn OFF during this process.
1. Hold down all 3 buttons on your Vectra controller orange and white
2. Hold down "Set" and "power/option" until flashing white and yellow
3. Press the "Set" button until the third LED (channel 3) is lighted - If using a different channel just make sure that LED is lit.
4. Press and hold "Set" - This saves the settings and pump goes back to normal.
5. Sign into EcoSmart Live using Google Chrome as your web browser
6. Select the "Devices" tab and "Add Device via wireless"
7. Follow the steps onscreen to add your new Vectra.