My baxi boiler keeps going up tp 3.5 bar pressure when i put the heating on even though the pressure is only at 1 bar when cold. Can anyone tell what the problem is ?
Expension vessel faulty, fill pressure to 1 bar when system pressutre to zero, and if fault continue than add another vessel to heating system elsewhere
k
December 2010
either pipe to pressure vessel is blocked, the vessel needs to be repressurised or the vessel faulty
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