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Old 02-08-2019, 12:29 PM   #1
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3-way switch help!


Hi all. I have a pantry light wired to a switch in which the toggle broke off. Upon removing it I discovered it's a 3-way switch. However, it's not paired with another 3-way switch. Turns out since it's such a small house, the original owners or builder, wired the above-the-stove range light/fan to the switch for a power source. The switch only works the light. The fan/light above the stove has it's own switch.
So I replaced the switch with a new 3-way switch last night. However, the pantry light works like a charm, but now the range light/fan doesn't.

I have the black wire from the pantry light connected to the "hot" black terminal and the other two connected to the traveler terminals.

Where did I go wrong?

Thank you in advance!
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Old 02-08-2019, 01:18 PM   #2
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Re: 3-way switch help!


You will have to describe the wires in the switch box.
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Old 02-08-2019, 01:28 PM   #3
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Re: 3-way switch help!


Hello - there are 3 sets of two-wire romex. I connected the black of the two wire romex from the light to the "hot" terminal. The other two black wires are connected to the traveler terminals. All whites are tied together.

Last edited by lenny24; 02-08-2019 at 01:38 PM.
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Old 02-08-2019, 02:31 PM   #4
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Re: 3-way switch help!


The other two will need to be connected to each other not one to each traveller screw.
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Old 02-08-2019, 02:39 PM   #5
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Re: 3-way switch help!


With that said, does it even need to be a 3-way switch or can it be a single pole switch connecting the white and black from light to the single pole switch, then connecting the two black wires from the hood and box together and the two whites together? Thank you.
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Old 02-08-2019, 02:45 PM   #6
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Re: 3-way switch help!


Quote:
Originally Posted by lenny24 View Post
With that said, does it even need to be a 3-way switch or can it be a single pole switch connecting the white and black from light to the single pole switch, then connecting the two black wires from the hood and box together and the two whites together? Thank you.
The power black and fan black can be pig tailed together and go to one screw of a single pole switch.
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Old 02-08-2019, 02:57 PM   #7
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Re: 3-way switch help!


Thank you so much for your help! have a great weekend!
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Old 02-08-2019, 03:03 PM   #8
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Re: 3-way switch help!


OK, so you have 3 2-wire cables coming into the switch box. One is bringing power to the switch box, one is taking power to the pantry light and one is taking power to the stove fan light. The question is which cable is bringing power to the switch box. If you don't have a meter you can determine which cable is hot through a process of elimination.
Quote:
All whites are tied together.
You got that much right.
You now need to find which black is the hot

Turn off power at breaker. Disconnect the black wires from switch. Pick two blacks and temporary connect them together. (Just put them together and tape.) Turn power back on. If the pantry light burns you know that one of the two is the hot and the other goes to the panty light. If the stove fan/light works you know that one is hot and the other is the stove fan/light. If neither the pantry light or the stove fan/light works you know that the wire that you didn't use is the hot.

If anything works (pantry light of stove fan/light) turn off power and disconnect the two wires. Chose one and connect it to the black wire that didn't use the first time. Turn on power and do same test. If nothing works this time you will know that the wire you didn't use is the hot. If anything works repeat the process. Eventually you will have two wires connected together with nothing working. You will then know which is hot and which wire goes to the pantry light and which wire goes to the stove fan/light.
Connect the hot and the black wire going to the stove fan/light together with a wire nut and add a pigtail. Connect the pigtail to the switch common (black) screw. Connect the wire going to the pantry light to one of the other screws.
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