circuit board hot and smells of burnt but 3 fuses ok pilet light ok but no gas light ch or hw on demand green light off .

kenny, July 2010

ha ha sorry its a 9.24 Worcester electronic

kenny, July 2010

Without trying to be funny, any clues to the make and model of this boiler? I find it helps sometimes when asking questions such as you have posed.
I repair boilers for a living, but with the best will in the world, I'd have to be psychic to begin to answer your question.

Carefree, July 2010