Loop the exposed end of the 12 3 cable s red wire around the brass screw.
Garbage disposal wall switch wiring.
In some cases the original wiring was connected directly to the garbage disposal.
I also wired up the dishwasher and got all the electrical stuf.
The bare copper wire will screw onto the green screw on the switch.
The red wire powers the garbage disposal s outlet when you turn the switch on.
You can use any kind of switch for your garbage disposal as long as it has set on and off positions.
The diagram above shows the power entering into the circuit at the switch box location then sending one power line for the dishwasher and a switched leg for the garbage disposal.
The black wire from the power source will go on the bottom screw.
In this episode i wire up a new switch and outlet for a new garbage disposal.
The diagram below shows the power entering the circuit at the grounded outlet box location then sending power up to the switch and a switched leg back down to the outlet.
Most codes require that the garbage disposal must be served by a dedicated circuit that powers no other outlets or appliances.
If you do not already have the necessary switch controlled wall receptacle outlet adding this wiring is a job best done by a licensed electrician since it involves running cable and making connections at the main service panel.
Tighten the screw with a screwdriver to secure the wire to the switch.
Electrical wiring diagram for a garbage disposal and dishwasher.
Wire in the switch with the black wires only.
These wiring diagrams show typical connections.