Ok, So I went for the Biasi Activa for my customer.. the combi version has been fine with my installs so far, but now I have installed the open vented version in a house with a y-plan and its been non-stop hassle for the last 6 weeks.. ERR 18 being the culprit (water flow) even though the system is spotless and balanced. It began when I tried to get the boiler to work as it should i.e. with the permanent live to the boiler, controlling the pump and being switched via terminal 8 in the wiring centre. According to the manual the wiring is pretty straight forward, L-L, N-N, E-E, Switched Live to 3, Pump Live to 2. All looked fine until the stats were satisfied, in my opinion the boiler should let the pump overrun for about a minute then go into st.by/hibernation mode until demand is called for. It didnt.. it continued to cycle between 75 and 82 never turning off, after speaking to their Tech Support (ha!) I should have wired the pump into 3 (the switched live) I did and it behaved exactly as I thought it would, the pump stopped when demand was satisfied and all sorts of overheat errors started..
I have now wired it as a non-permanent live y plan to keep the customer going and because there is no overrun i get the flow error again..
Anyone have any thoughts??.. Im waiting for an appointment for a service engineer under the 5 year warranty, although I have a sneaky feeling they will try to bodyswerve it... never again!!
I have now wired it as a non-permanent live y plan to keep the customer going and because there is no overrun i get the flow error again..
Anyone have any thoughts??.. Im waiting for an appointment for a service engineer under the 5 year warranty, although I have a sneaky feeling they will try to bodyswerve it... never again!!
