Search results

Hi all, I have a Vaillant boiler sealed system which recently has been needing re-filling daily, to allow the CH to work. Hot water for shower etc. has been fine throughout. A member here has kindly suggested a 'dead expansion vessel' as the problem and a quick internet search has found the...

Hi all, newbie here: In the last few days I have been finding my CH not working due to no water pressure. In the past I have had to use the filling pipe once in a very long while but now it's down to zero in a day. No leaks obvious anywhere. System was installed in 2008. Yesterday I re-filled...