Hi can anybody give me an idea on how to increase the heat of my central heating.Had a a new pcb fitted as the boiler wasnt firing up.Now it fires up but the central heating is half the temperature it should be.I think before you could remove the buton which determines if you want to use central heating or hotwater or both and turn a screw,but the new board has plastic covers over the holes with no screw in sight.Please can anybody help.
