central heating not working . hot water working, can anyone help with this have had plumber out nothing had electrician out nothing found
have replaced the control panel with new original w/b one and new thermostat swell still not working heating but hot water works I am based in Leeds 16 .. help please if you have any ideas w/b technical help seem to think after the conversation it may be the circuit board.?????
could it be something staring us in the face ?