I have had a multimeter test and and been told that there is no power to the CH pump and so the problem must be in the circusit board - Another plumber (friend but 200 miles away) suggested it could be the thermistor.. Obviously the second option should be checked first as it is the cheapest as...
[size=9]:?: I am unable to get the central heating to work (bolier does not fire up)but there is no problem getting hot water from taps. Is this a gas diverter problem or something more sinister (waiting for corgi fitter to return my call). [/size]