The white wire can also be used to carry current if needed.
Wiring a fan light combo.
In order for the light to be controlled by its own switch the wiring between the switch and the fan unit needs a fourth wire a red wire to carry power to the light kit.
Combination light heater and fan units can be incredibly handy in smaller bathrooms and other home areas that lack heating and cooling vents.
These three in one fixtures work best when wired to a three function switch box allowing for individual control of the unit s functions from a single point.
I have a junction box in an old house that was used to power a bathroom light.
Attach the red and black wires from the fan light unit to the top terminal screws on the switches.
Connect the green wire to your household ground wire copper bare wire.
Bathroom exhaust fan heater electrical wiring if the power source is at the wall switch then the commons or neutrals tie together and are not switched.
Connect two of the black.
How do i wire the switches for my bath fan and light.
If you choose to do this.
If the fan has a pair of black wires and a pair of white ones you can wire the light separately from the fan.
If the 12 3 has been installed between the wall switch and the combo unit then because this combo unit has three switched functions then you will need an additional 12 2 cable installed.
Wiring a bath fan combo electrical question.
For some that will be any combination from no switches using the included pull chains for powering the fan and or light and having separate switches for the light and fan.
The main thing to consider wiring a ceiling fan and light is determining how you want that fan to be controlled.
The wiring diagram above is for typical installation wiring light is switched the fan is powered by a pull chain once you have found and identified all of the wires on your fan and in your electrical box you can get to work on connecting them.
Usually the hot wire to the fan in a fan light combination kit is black while the blue wire is usually for light.
Connect the two white wires in the switch box together with a wire nut.
From the switches 3 wire cable runs to the ceiling outlet box.
Connect your white wires together and secure with wire nut.
The source is at the switches and the input of each is spliced to the black source wire with a wire nut.
This wiring diagram illustrates the connections for a ceiling fan and light with two switches a speed controller for the fan and a dimmer for the lights.
Pull electrical cable between the fan light and the switch.
I would like to swap the light for a light fan combo.