Worcester Gas condensing boiler R25 HE (4 Years old)
Just recently i am experiencing increased pressure shown on pressure gauge up until the relief valve operates and reduces pressure. I depressurised the system using the relief valve down to 1 bar and disconnected the filling loop and the pressure still increases even with the boiler not operating ( about 1 bar rise in approx 2 hrs ).When the boiler is operating for domestic hot water the pressure increases more rapidly up untill the relief valve operates , i have been advised it is either the expansion vessel needs repressurising or that the heat exchanger is faulty. Could anybody assist with a cause of the problem. Many Thanks
Just recently i am experiencing increased pressure shown on pressure gauge up until the relief valve operates and reduces pressure. I depressurised the system using the relief valve down to 1 bar and disconnected the filling loop and the pressure still increases even with the boiler not operating ( about 1 bar rise in approx 2 hrs ).When the boiler is operating for domestic hot water the pressure increases more rapidly up untill the relief valve operates , i have been advised it is either the expansion vessel needs repressurising or that the heat exchanger is faulty. Could anybody assist with a cause of the problem. Many Thanks