Pressure Loss on Combi Boiler

Postby spider13 » Mon Jul 09, 2007 7:26 am

Before I lift any more carpet and boards, could there be any other reason for a frequent loss of pressure, other than a water leak somewhere in the central heating system/pipes/rad's etc.? Boiler is only 2-3 years old and losing pressure/needs topping up every few weeks. Can't find any damp, wetness anywhere in the house. Please help.
Thank you
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Postby bazza » Tue Jul 10, 2007 8:06 pm

hi spider other possible reasons cud be a faulty pressure gauge a faulty prv (pressure relief valve) or air in the system (do you vent rads alot ! u cud also check gauge n see if pressure is going high wen heating on 3bar if so it cud be a problem with expansion vessel hope this helps bazza
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