Rafal Kaczynski

Sun 16 Dec 2012 12:00am

Hello if you will have faulty filling loop valves pressure will increase not decrease soIf you are constantly losing pressure in the heating system you could try the following to establish the cause: Check all visible joints including radiator valves and connections for obvious signs of leakage. Ensure that there are no leaks to any under-floor pipework. Check that there is no water being discharged from the pressure relief valve (sometimes referred to as an overflow). This pipe usually goes from the boiler through to an outside wall and terminates outside. Check this for signs of dripping. If it is wet, this may mean that the pressure relief valve is faulty. In either case such as faulty diaphram in vesel etc you should contact competent gas engineer for advice I think this will help Regards Rafal

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richard bambridge

Sun 16 Dec 2012 12:00am

hello f75 is also the pressure switch , pressure dropping is a leak on the system or evn the prv passing slightly or the pressure vessel need charging . whatch the dial when the heating first goes on and make sure it doesnt go on the red if it does the vessel needs attention .. thanks richard

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