050

hey! I need abit of help understanding a problem with my boiler, I brought a Viessman Vitodens 2021 050-W boiler in 2021 and after every boiler service I need to call out Viessman under warranty due to a banging noise when using the hot water tap, the longer the time goes between the warranty...

System worked fine before, in fact it’s only 18 months old and was just serviced. But I just took off a radiator to redecorate and after putting it back on and filling it up I have at F2 fault. When turning the hot water on, the temperature goes up past 100 and then the F2 appears. So it...