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Hi, I have a Vaillant Ecotec Pro 28 that was installed less than 2 years ago. The electrics were also replaced at the time with a brand new electronic timer and a remote temperature controller. The heating works fine when it is on (timer is on and temperature is also on) but when I shut...

Hi, My Vaillant's pressure is going to zero overnight with all the symptoms that match the FAQ entry "REPRESSURISING THE PRESSURE VESSEL". The procedure seems pretty straightforward and I would like to try it. I need to open the left hand side of the boiler but before I start unscrewing...