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3 yrs old and the boiler keeps shutting down.Have had 3 diagnosis so far but not conclusive.1/It's a Biasi-they are trouble! 2/Diverter valve 3/Not diverter valve it's your PCB. B.G. will come for a one off figure.Biasi not a problem but would recommend a service contract.I've been down this...

I have posted already on this subject but possibly I didn't explain fully.It is a Ravenheat 84ET and altho' I have fitted a new genuine Giannoni Diverter the problem remains.I can fire up on DHW but only if I tap the valve.This was also the case with the original valve.The sequence therfore is:-...

Have fitted relacement genuine diverter valve but still having problems.The original valve went kaput ( sticking) but a little tap like on the old BMC electric fuel pumps and it would fire up.Replacement is doing the same altho' not as responsive as the old unit.There is a 3 terminal switch...

Should I as a "competent diy'er" be able to purchase a diverter valve for a Ravenheat 84ET.Whilst I accept that it is a gas appliance,I am only fitting a diaphragm operated control valve on the water even though it is a means of sending a message to the gas valve. One company even states "If...

Central heating seems OK but DHW not. Boiler is 3yrs old.I am informed that they are rubbish and should consider replacement. Help please!

As a result of having underground services carried out by the Water Authorities contractors, the excavations showed a copper gas feed that fed the cooker and is sunk in the concrete floor of the kitchen extension.The extension was built prior to 1987 when we moved in.Although its been under...