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right so last night just before going to bed I thought I might try a slightly different approach. I turned the boiler from constant onto timer ( the timer was in "off" position for heating so heating turned off) and at that point the pressure was 2.5 bar. So I waited for about 20 minutes whilst...

Hi Tony Thanks for the info. If the expansion vessel needs replacing and cannot be sorted by recharging what does that normally cost. This sounds to me like its the problem. I am not a fitter/plumber so is it ok for me to attempt the recharging of the vessel? Many thanks for your help

I am not going to ask what that involves or even means. But what sort of cost is involved in that and how long should it take. The pipework that runs from the pressure relief valve to washing machine waste pipe was only fitted about a year ago. Could that have damaged the valve? The boiler is...

The heating was on the day I bleed the radiator. It was a tall towel warmer type rad and only the bottom half was heating up. The rad was upstairs, I let all the air out but by the time I finished all pressure was gone from Boiler and it had switched off and flashed F28. I am happy to leave...

thanks for the answers. I have no real knowledge of boilers so if my responses seem completely ignorant I apologise but here goes. Firstly the pressure relief pipe - I am guessing this is the pipe that runs from underneath my boiler to my washing machine waste pipe (both boiler and washing...

Hi All Possibly someone can give me some info/help about my boiler as no one at Vaillant technical department has offered a response from email and when I called I was told the call out fee excluding parts would start at £275. The boiler is just over 5 years old and has worked fine for years...