Setup - How to Switch a Relay This Vivoguide explains how to change a relay from one, to another on a 51X Controller.
![VivoAquatics Anderson-Sep-30-2020-10-44-18-90-PM.png]](https://helpcenter.vivoaquatics.com/hs-fs/hubfs/Google%20Drive%20Integration/VivoAquatics%20Anderson-Sep-30-2020-10-44-18-90-PM.png?height=40&name=VivoAquatics%20Anderson-Sep-30-2020-10-44-18-90-PM.png){kind=small}