Hello there. The light no longer works in my bathroom. I though the bulb had gone but it hasn't - no bulb works in the fitting. Looking at the fitting itself - all the wires are connected tightly: 2 red (wond together and attached to on screw) and two black (each attached to their own screw). The springs in the fitting seems to be fine to - the connection is good. However, when i had a look at the fitting it seemed quite old, dusty and loose. I vaccumed it to get rid of the dust. Does anybody know if light fittings tend to die after a number of years? I've yet to buy a new fitting but wonder if I can fix the existing one? If its not the fitting that is at fault, where else should I look? All other lights in the house are working fine. I've also opened up the switch and all the wires are correct and firm. Does anybody have any suggestions as to where my problem might lie? Thanks in advance.