According to standards in use since the mid 1900s a wire color code identifies the purpose of each wire in an electrical circuit.
Blue white and black wires.
If you want to run both the light and fan on one switch twist the blue and black wire from the unit together.
In the switch box.
One blue and one white.
My installation instructions tell me to connect the vent wires black and white to a black switch box wire.
Two wires are coming down from my ceiling.
During installation of the ceiling fan this white wire should be attached to the other neutral wire of the house wiring.
The light wires blue and white are to be connected with a red wire.
Like black wires they can also be used in some types of switch legs.
They control your air conditioning system.
I m installing an ventilation fan eith light in my bathroom.
Connect black fan wire to the black ceiling wire.
Connect the black wire to the screw located in swith 1.
The ground wire is usually left bare but in some cases the ground wire color is green.
Connect the blue wire to the red wire.
The white wire connects to terminal w in industry standard thermostats.
In addition red wires are used to connect hardwired smoke detectors to the home s power system.
Household circuits usually consist of a black wire a white wire and a bare copper ground wire.
The yellow wires underneath your thermostat connect to your compressor.
Ceiling fans have different colored wires.
Hook the neutral and ground wires first.
It s possible to link two red wires together or a red wire to a black wire.
In this case consider a fan with green ground white neutral blue hot for the fan and black hot for lights wires.
Blue and yellow electrical wires.
The white wire underneath your thermostat connects to your heating system.
How to wire a fan light with black white blue wires.
Connect white wires together.
Connect the red wire to the screw in.
The white wire of the ceiling fan is the main neutral for both the light fixture and the fan motor.
Typically this is indicated with a band of black or red electrical tape but other colors may be used wrapped around the wire s insulation.
Split the incoming hot wire into a y and connect it to a terminal on each switch.
Being the main hot wire the primary function of the black wire is to provide current to the fan s motor.
White wires with black or red tape.
In 220 volt circuits red wires are the secondary live wires.
The white wire is always neutral and when the cable has only two conductors as most 120 volt cables do the hot wire is black.