I have a 3-gang box above my kitchen counter with 3 switches:
- One for a lighting circuit
- One for the under-sink disposal
- One for the dishwasher
Nobody wants a wall switch to turn off the dishwasher, so I am going to remove that switch and wire the dishwasher circuit on all the time.
I don't want to have a plate with a blank spot, so I thought I'd add another receptacle there. Changing out the box to a 2-gang isn't really an option because of the tile backsplash. Opening the box I found 3 separate circuits into the box, all 14ga wiring with neutrals, one circuit each for the lights, dishwasher, and disposal.
I do not know if there are other appliances or loads upstream or downstream on any of these circuits. The other counter receptacles in my kitchen are 12ga-20amp and GFCI protected, but none of those circuits enter this box.
Which of the three circuits in this box should I use for the new receptacle? I am assuming I will have to get a GFCI receptacle if the circuit I pick is not protected at the breaker or upstream.