To ensure your ceiling fan works properly and provides safe operation, it must be wired correctly. If you are thinking about installing a ceiling fan in your home but worry that the installation process might be difficult, you will be glad to know that wiring a fan is actually quite simple. The key is to ensure all the connections are secure, that the right size nuts are used, and that when done, you do not see any stray, copper strands.
Typically, a ceiling fan is designed with four wires or in some cases, three wires along with a ground. The colors of these wires are black, white, green, and then a fourth color that could be black and white striped, blue, or red. The black wire you see on the ceiling fan is the hot wire, the one that is used to operate the fan's motor. Then, the black and white, blue, or red wire is the hot lead, which is used if you chose a fan with a light fixture. With the white wire, you have a neutral lead, which operates both motor and light, and green, which is the grounding wire.
Regardless of the brand, style, or size of ceiling fan you purchased, remember that the white wiring will run from the fan assembly going to the white or neutral wire from the house. In some instances, people will discover that the house's neutral wire has a small piece of colored tape attached. If you come across this situation, it probably means that the wire is being used as something other than a neutral lead. In this case, you would need to install, or have installed a wire that could be used as the neutral lead for the fan.
Now, the green wire will come from the fan assembly, which is then attached to the ground wire from the house. The wire from the house could be green as well, but in most cases, it is bare. If you have an older home, chances are there is no individual ground lead. Instead, the wiring is set up using an electrical box and metal conduit. If you run into this challenge, you would need to attach the fan's green wire to the electrical box. Just make sure you use a clip or screw designed for this purpose.
When it comes to the fan and house hot leads, the way you handle it would depend on whether a light fixture were being used or not. For example, if you needed to replace an existing light fixture or you were going to install the ceiling fan where only one switch exist, you would need to run the black wire from the fan to the hot house wiring, which is usually black but could also be red.
Now, if the ceiling fan will be installed with a light fixture, the black and white striped, blue, or red hot wire would also be attached to the house's hot wire. However, if you are only installing the fan and no light, then the these wires can be capped off, protecting them. The most important thing to remember however when capping these wires is to make sure this is done within the switch housing.