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Someone did suggest that it may be a diaphragm? or the diverter valve but, to be honest I haven't a clue. Also, do you know of any gas engineers locally?? Thanks, Jason

Hi there can anyone please help with the following problem? I have a vaillant 242e boiler which is about 10 years old. Since yesterday morning the boiler has failed to ignite for both heating and hot water. When you switch the hot water on or the heating you can hear the fan running but...