SAJ July 22, 2025 20:02 Updated To create your SAJ system with us, all you need is your serial number. Click on “Roof system”. Select “SAJ” from the list. Enter your serial number. Done Related articles Why do I only get new values every 5 minutes? Sunova Q.HOME⁺ ESS HYB-G3 Operate heat pump with PV electricity Sonnen