A ceiling fan wiring diagram visually represents the layout of wires and various devices to design a perfect ceiling fan circuit. It usually consists of the switch, capacitor, and ceiling fan. Electrical wires connect the capacitor with the switch panel that gives power to the fan. The electrical panel contains a button and a regulator. The ground, neutral and hot wire are commonly represented with black, blue, and red in the diagram. It depicts the layout of your electrical circuit, and you can use it to troubleshoot any problem or redesign the whole circuit.