Divine Light Switch Two Black One Red

On any 3 way switches you change pay close attention to the wire on the black screw.

Light switch two black one red. If the switch that was there is a standard light switch with two brass screws on it and one green screw you can connect the red wire to either of the brass screws. Join the black wires from both cables together add a 6 inch jumper cable of the same gauge twist them all together and screw on a wire cap. It s essential that you determine which black wire is hot before proceeding.

Connect the black wire to the other brass screw. Red and black form the same cable will connect ot he brass screws then the red and black from the other cable will connect ot he black screws. I have an old switch in our master bedroom that controls the light in our small ensuite bathroom.

The red and yellow wires have. If you don. There is no other special orientation besides the same cable wires on the same color screws.

Put the same wire on the new switch black screw the other 2 wires on the brass screws have no special order. They should both be of the same wire gauge. The easiest and safest way is to use a multimeter to test for current.

12 awg for 20 amp circuits and 14 awg for 10 and 15 amp circuits. Black means hot white signifies neutral and green indicates ground. Join the white wires and cap them in the same way but omit the jumper wire.

If you have a ground wire connect the ground wire to the green screw. But what about a regular old light switch. There appear to be two white assume neutral wires screwed together with a wire nut and a ground wire tucked away inside the junction box.