Wiring A Bathroom Fan Light Combo

How to install wiring for a bathroom exhaust fan if the power source is at the wall switch then the commons or neutrals tie together and are not switched.

Wiring a bathroom fan light combo.

There are no code requirements for switch mounting height but 52 to 54 inches to the center of the box from the floor. 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. 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 easiest place to pick up the power to supply the switches will be the bathroom wall receptacle circuit.

For a fan and light switch with existing wiring splice the white wires and connect the grounds securely with wire connectors. Connect the green wire to your household ground wire copper bare wire. Connect your white wires together and secure with wire nut. 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.

The junction box of the original light has two romex cables coming into each side. Connect the red wire to one switch terminal and the black wire to the other terminal. If the 12 3 has been installed between the wall switch and the combo unit then because this combo unit has three. You have essentially created two separate circuits within the connection box.

I would like to swap the light for a light fan combo. Electrical wiring for a bath light fan combo i have a junction box in an old house that was used to power a bathroom light. 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. The source neutral and ground are spliced through to the fan location.

Combination light heater and fan units can be incredibly handy in smaller bathrooms and other home areas that lack heating and cooling vents. Connect the white wires the ground wires the black wires and the red wires together. The wiring is very weird. Connect power to both switches through two pigtails spliced to the feed wire.