problem with the boiler is its keeps building pressure on the central heating until the saftey pressure release blows could any one help with this problem, as too which component needs replacing to rectify it .many thanks lee621
sorry not that stupid any serious suggestions
Does pressure increase all the time or only when operating? I cannot see why the expansion vessel would increase pressure. Domestic/secondary heat exchanger defective might though.
as the heating is being used the presure slowly builds until the prv blowsDoes pressure increase all the time or only when operating? I cannot see why the expansion vessel would increase pressure. Domestic/secondary heat exchanger defective might though.
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