Wiring A Fan Light Combo Switch

Connect two of the black.

Wiring a fan light combo switch.

You either extend the power from the light fixture to the exhaust fan location or extend the power to the wall switch. Connect the two white wires in the switch box together with a wire nut. The source neutral and ground are spliced through to the fan location. Connect your white wires together and secure with wire nut.

Then the white wire is the neutral which is connected to source neutral at the source or with the use of a splice in the switch box. Combination light heater and fan units can be incredibly handy in smaller bathrooms and other home areas that lack heating and cooling vents. 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.

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. 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. Wiring a fan and light to a single switch in this wiring the source is at the switch and 3 wire cable runs from there to the fan and light. Provides control of one ceiling paddle fan and 3 quiet fan speeds provide increased comfort.

The source hot wire is spliced to the black fan wire to hardwire it directly to the circuit and to a pigtail connecting the switch. The neutral wires and ground wires are not connected to the switch. The control features a small rocker switch to turn the ceiling fan on and off and a slide knob for fan speed control. Usually the hot wire to the fan in a fan light combination kit is black while the blue wire is usually for light.

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.