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Old 10-12-2011, 10:24 AM   #1
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Installing a new ceiling light scenario


Hi Everyone,

I tried to install a ceiling light. Originally the ceiling hole was just covered up. I open up the cover, use the electric detector to detect if the wire has electricity..... and it does.... I then try turn off the wall switch and try see if it still has electricity.... and it still does.... then it puzzle me because if so... the light cannot be turned off.... It is a condo unit.... and I am the landlord try to do a favour for the tenant by giving him a nice ceiling fixture....

welll I couldn't do it last night... after go back home and laying on the bed... then this idea come to me and I want to pass you professional see if I am thinking correctly... I suspect the wall swich didn't wired... the wire behind the wall plate probably just capped.... the switch is didn't connect to the wire yet... may be it is the code that you cannot connect the switch without a lighting fixture.... I don't want to embarssed myself again in front of the tenant... could you let me know my thought make sense...

thanks in advance.

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Old 10-12-2011, 10:45 AM   #2
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Installing a new ceiling light scenario


Lets start from the beginning. When you open up the junction box on the ceiling, what colors of wires are in there? What colors are hooked to the wall switch to control? Pictures are nice also.

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Old 10-12-2011, 11:02 AM   #3
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Installing a new ceiling light scenario


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Lets start from the beginning. When you open up the junction box on the ceiling, what colors of wires are in there? What colors are hooked to the wall switch to control? Pictures are nice also.
thanks for answering... I didn't open up the switch plate... will do so next time... did open up the ceiling covered junction box... there are a bunch of white wires tired together... and a single red wire extract out from a bunch of black wire... the red wire was being capped and got electricity on it no matter how I turn the wall switch... I suppose the red wire is the Hot wire and the white wires are the neutral wire for me to connect to the light fixture.....

as per the wall switch, I didn't open up .... I suspect inside there are two hot wires which are capped together.... causing constant electricity.... at the light fixture... which should be hooked to the switch.... will find out next visit... but just want to pass by you professional here ... see if there is such possiblity....

thanks.
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Old 10-12-2011, 12:01 PM   #4
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Installing a new ceiling light scenario


The red is feeding another circuit/light possibly downstream. Open up the wall switch, and be careful when doing it while live. The breakers for lighting should be labeled, and should be 15a. When you look in the junction box for the wall switch, note what color is connected to the switch, and what color is tied to the feed from the panel, that is not connected to the wall switch.

Again, pictures are nice as asked for before, because they help everyone else to visualize what you are seeing.
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Old 10-12-2011, 12:23 PM   #5
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Installing a new ceiling light scenario


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Originally Posted by gregzoll View Post
The red is feeding another circuit/light possibly downstream. Open up the wall switch, and be careful when doing it while live. The breakers for lighting should be labeled, and should be 15a. When you look in the junction box for the wall switch, note what color is connected to the switch, and what color is tied to the feed from the panel, that is not connected to the wall switch.

Again, pictures are nice as asked for before, because they help everyone else to visualize what you are seeing.

thanks,, I will try to take picture next time.... thanks...

I doubt the red wire is for downstream purpose because... it is a split out to serve no purpose it can be removed I meant if it is not for connecting the light fixture and does not affect anything....

thanks anyway...
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Old 10-12-2011, 01:45 PM   #6
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Installing a new ceiling light scenario


My guess is you are getting a false reading on your voltage detector (proximity ticker, right?). Use a voltmeter or Wiggy instead.
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Old 10-12-2011, 02:35 PM   #7
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My guess is you are getting a false reading on your voltage detector (proximity ticker, right?). Use a voltmeter or Wiggy instead.
you may be right... except that.... being so happy to be a first Landlord... I spent over $20 at home depot to buy this dedicated electric detector which looks so high tech where the lcd light change from green to red whenever there is voltage around.... I used to use those contact voltmeter at school which is combersome.... I guess old things are better like always....

thanks anyway, at least I now have one more option....

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