Have managed to repair fault.Overheat stat was not the type that can be reset.When it goes it disables the pilot.I replaced stat and now it is working fine thanks
After installing a new pressure guage to a worcester240 bf combi I noticed that the pilot light had been extinguished. After several attempts to relight said pilot to no avail I fitted a new thermocouple. Still no joy. I contacted worcester tech to be told that a new gas valve is required. There...