Twist the ground wires together then connect them to the green ground screw on the switch. Your power supply line the black wire should be feeding both switches and those switches power the fan black or the light blue.
How To Wire A 3 Way Light Switch Family Handyman
How to wire a 3 switch bathroom fan. Gather the white wires and cover them. Once your fan is free position it so that you can easily access the connection box. Connect the white wires the ground wires the black wires and the red wires together. Connect black fan wire to the black ceiling wire. Mount the fan and turn it on and move it to the switch compartment. Connect the black fan wire to the lower terminal of the switch and the live circuit cable to the upper terminal.
At this point you may connect the unit to your heater if necessary. If you are lucky you will be able to pull the cable through the ceiling to the housing box from a spot above. To do this method the wire from your wall circuit to your light has to have 3 wires. Generally you will need to connect the wires of the same color with a wire splice connector sometimes called wire nuts before securing the unit to the ceiling. Wiring switches in a typical exhaust fan installation. Inside the box youll need to separate the wires to see which feed the fan and which feed the light.
For a fan and light switch with existing wiring splice the white wires and connect the grounds securely with wire. Identify your wires and follow the instructions in your manual. Connect the blue wire to the red wire. When renewing the bath consider placing a new fixture and led bulbs. 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. 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.
Firstly the supply from the 3 pole isolator switch should be connected in to the junction box l n and e then the fan should be connected using 3 core and earth cable depending on the model the earth may not be required with the extra cable being used as the switch live sl. Connect power to both switches through two pigtails spliced to the feed wire. Installing and wiring a bath exhaust fan and light electrical question. Connect the red wire to one switch terminal and the black wire to the other terminal. Connect the power source to one screw terminal and a lead wire to the other screw then splice the wire of the two devices to the lead wire. Run an electrical cable from the bathroom fan to the housing box in the ceiling.