Diagram Wiring Double Switch Bathroom Fan Light

After my bathroom addition was rough wired and before the insulation was done i decided to add a ceiling fan and light to be controlled with separate switches in place of a simple light fixture.

Diagram wiring double switch bathroom fan light. This wiring diagram shows an easy to follow configuration for a bathroom extractor fan fitted with a timer that s not going to be turned on by the existing light switch. Connect the black fan wire to the black wire in the 3 cable. The time lag switch will allow the fan to be manually started but then run for a pre set time. Connect a light and a fan to a new switch.

A bathroom extractor fan is essential to clear the room of humidity and prevent damp. Connect the blue light wire to the red wire in the 3 cable. Because the heat uses a lot more power than the light fan it gets the 2 cable. It can also be adapted for separate switching if required.

Locate the switch cable which should be sticking through the top or side of the box serving the fan or light. Options include a manual pull switch and a vacuum time lag switch. Installing and wiring a bath exhaust fan and light electrical question. But the majority of fans are wired to work only alongside the bathroom light which can be really wasteful.

Though it is not difficult to wire a double switch careful attention to safety is crucial to prevent injury. Instead we are going to install a new switch that will turn teh fan on and off. Step by step. Rewiring your bathroom circuit to allow fan and light to be operated independently.

To wire a double switch you ll need to cut the power remove the old switch then feed and connect the wires into the double switch fixture. This wiring plan will simply run the fan when the room light is on. Connect all grounds together as always color coding. Using wire strippers peel an inch of insulation from the end of the black and white wires.

Connect the red heat wire to the black wire in the 2 cable. Locate the switch cable which must be glued through the top or side of the box that serves the fan or the light. Removing existing wiring i removed the 2 wire with ground from the switch to fixture and replaced it with a 3 wire with a ground. Splice the black wire from the fan together with the black wire from the light and the black wire from the switch and cap them.

For example you might want to turn on a bathroom light separately from the ceiling fan. Wiring a combination bathroom ceiling exhaust fan and light unit with the fan and light being controlled by separate wall switches is an easy project even for a beginner.