I have just moved into a house and the central heating decided to go. I've opened it up and found on the PCB board there are two light that are on, directly under the No.1 (Switch Live/Fuse) and No.2 (Thermostat/overheat). I cannot press the the little red button in the front next to the on/off max/min switch, it seems to be pressed already. When i switch the system on the fan at the flue comes on but no spark or gas. Please someone help, where can i find parts for this boiler?