Hopefully theres someone on here who is clued up about this subject. Basically I recently bled my radiators, then filled up with water to about 1.5 pressure. Anyway went to turn the boiler on and it didnt work, anyhow I pressed the reset switch and the boiler fired up. The central heating was working fine for about an hour then I noticed the boiler had gone off, and the standby led wasnt on, yet when I turned the switch to the summer setting the led came on and the hot water works fine. But when I switch to the winter setting the led goes out, and neither the central heating or water works. Anyone any idea what the problem could be? The boiler is a biasa 24s.