Search results

Hi everyone ive tried the pump the other was around as suggested ( water flow and arrow pointing down and in the direction of the motorised valve, well everything worked fine for about 5 mins then the boiler started shutting down with the vaillant code F23 this in the manual reads....water...

Thanks everyone for the advice/comments, I will try the pump with the flow the other way, The house is 20 years old and its the original heating system and plumbing, the plumber just replaced the boiler that is downstairs in the kitchen, he was gas safe registered but I will be the first to...

Hi everyone, ok the heating system is a standard none combi type and The boiler is a new Valliant, basically after turning the heating on for about one hour the boiler will start sounding pretty rough then shut down, If I then bleed the central heating pump with the bleed screw in the middle...