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Mend Ferroli DOMINA 90 Boiler Pressure Ferrolli

High pressure in my ferrolli boiler?

My boiler was reading 3bar.I had the expanssion vessel replaced but the pressure is still rising.Any further ideas please

Darren
January 2008
FerroliFerroli DOMINA 90Heating, Home Heating SystemsBoiler Pressure Ferrolli
the vessel has been replaced and the filling loop disconnected and the pressure is still high.does this mean that i will have to get the heat exchanger replaced?

darren
February 2008
3 reasons for pressure rising, expansion vessel, plate heat exchanger passing mains water or filling loop by passing.

Justin
January 2008

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