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Electrical Wiring in the Home/3 way hall light with ft porch light


I have 2 switches on the wall inside my front door. One switch controls the ft. porch light outside, the other switch controls the foyer lights, which is a 3 way and can be turned on from the kitchen too.  there are (3) separate wires inside the box- they are: (2) 14/3 w/ground, and a 14/2 with ground. only one wire is hot inside the box- a black on one 14/3.
I changed the switch and tried to install designer switches. Ft. porch light doesnt work now .I guess its a type of 3-way circuit with a line for the ft. porch?

Professional electrical wiring never involves guesswork.
The most likely scenario is that the 3-wire with the hot black goes to the foyer light, where the hot comes from the kitchen switch box or a receptacle.
That black is supposed to feed both switches. Were there splices you took apart?
With those wires, the way I would have used them would be:
3-wire from foyer light
 Black- hot feed to front switch box connected to white of other 3-wire for 3-way (to carry feed to other switch) with black tail to feed single-pole for front door
 White neutral for front door light
 Red to 3-way switch common to control foyer light

2d 3-wire
 White hot, black and red travelers

 White neutral to white of foyer light 3-wire
  Black to load side of single pole switch.

Built about 3, 000 houses wired that way
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Electrical Wiring in the Home

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Robert Wilber


Licensed Philadelphia electrician serving Delaware, Chester, Montgomery and Philadelphia County in Pennsylvania. I install and repair residential, commercial and industrial wiring and lighting. Troubleshooting and repair of problems that stump other people is my favorite. I am willing to help people figure out why things don`t work. I understand motor controls, transformers and machine wiring. I do not teach basics to novices or do free design work.


Experience in the area I have 44 years experience in residential, commercial and industrial electrical construction and repair, 480 volts and below. This is not to be confused with one week repeated two thousand times.

44 years experience in residential, commercial and industrial electrical construction and repair

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