If your head no longer acts on the heating element of your heater, you can go to your interface / mobile app, then the “My Residence” tab, “My Products / Zones”, then click on “⁝” and “Calibrate”
If your head no longer acts on the heating element of your heater, you can go to your interface / mobile app, then the “My Residence” tab, “My Products / Zones”, then click on “⁝” and “Calibrate”