All 4 of my kitchen recessed lights quit working yesterday. I tried installing a switch but I have a black and white active nutted together.

I have two black wires one active one not and an active red. Copper is ground.

I can't figure out why they still don't work. The wires going into the light are black and white. Not getting a reading off of either of those. My understanding is to check the light closest to the switch.enter image description hereenter image description here

  • Hello, and welcome to Stack Exchange. Have you checked the fuse/breaker? – Daniel Griscom Nov 18 '18 at 21:56
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    How many wires were hooked to the old switch? – Harper - Reinstate Monica Nov 18 '18 at 23:31
  • Looks like there is even a BLUE wire in that electrical box. Wonder what that is for. – Michael Karas Nov 19 '18 at 1:39

More information is needed.

Is this a condo or house? What is the general location? United States?

Are the lights controlled from more than one location?

Is that a new switch or what was there before?

From what is visible in the photos, it suggests that there is another box in between the switch and lights. In a condo that could even be one of the counter plugs where it then goes to the cabinet lights.

Most important question, what was done since the lights were last working as intended?

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    I'm not sure why it would matter whether this is a condo, rented apartment, single-family home, townhouse or something else. Wiring can be good or bad (and circuits shared or separate) in any of them, very much dependent on age of the building - ownership status has nothing to do with it. – manassehkatz-Moving 2 Codidact Nov 21 '18 at 21:53
  • The answer should be a comment but may be looking for wiring methods conduit vs romex that may explaine the blue wire if in the US. – Ed Beal Nov 21 '18 at 23:04
  • The type of building(condo/house) as well as location helps identify typical wiring methods. I NEVER said anything about ownership as there is a basic belief that people don't typically mess with other people's property. Although I do have one monster story about this best suited for the law forum. – user68386 Nov 22 '18 at 19:09

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