I have a five arm chandelier and one of the bulbs went out.The bulbs are 40 watt screw in and i previously put a 60 watt in by mistake .This worked for a while and then went out. Now I tried to put a 40 watt in and this arm on the fitting does not work. Could I have damaged the contact inside this arm. Any help would be appreciated because the fitting is very heavy and i don`t really want to do a Del Boy and Rodney and take it down to have it fixed and tested.