Can I connect blue and black wires together?
Can I connect blue and black wires together? The black and blue wires need to be connected. You will be able to control your fan and lights with a single switch. You should twist the black and blue wires the same way you did the previous wires. What is a blue wire in electrical? Blue wires are used as travelers, usually on three- or four-way switches (controlling a light from multiple locations) or as switch legs for things such as fans or lights. Yellow wires are almost always used as switch legs for outlets, fans, or lights. How to wire...