Vaillant Vcw Gb 242 Eh pilot light comes on 4 water but not the heating? ?
Hi, when I turn the hot tap on the pilot light sparks in thye boiler and the water becomes hot. When I turn the heating switch the boiler comes to life but the pilot light doesnt come on so we have no heating. I have been trying all day to find a solution. Any thoughts would be much appreciated. Cheers Neil