How do I change the handset holder on my exposed smart shower?

You will need to isolate the power and water to the shower, disconnect the data cable at the processor unit / Quartz™ smart valve and then disconnect the black push fit 90° elbow located directly above the shower, fitted to the shower’s down pipe. Remove the fixings that hold the shower to the wall and carefully lower the shower down from the ceiling. Pull the 10m data cable through into the bathroom. Once the cable is in the room with you, you can slide the old holder off the top of the rail and over the data cable, and reverse to fit the new holder. As this is a technical job we usually recommend an Aqualisa service engineer carries out this work.