Why does the water temperature fluctuate in my Aqualisa OPTIC Q?
- RrcalderonAug 3, 2025
If you're experiencing fluctuating water temperatures with your Aqualisa Plumbing Product, several factors could be responsible. If your hot water comes from a combination boiler, ensure the Logic module mode on the Aqualisa SmartValveTM is set to COMBI. Additionally, high hot water temperature can cause fluctuations, so make sure your hot water supply temperature is below 65ºC (minimum 55ºC for stored water and 50ºC for combination boilers). Another potential cause is a communications issue; check the data cable connections for any visible damage.