Mysterious light switch


  #1  
Old 07-05-19, 09:05 AM
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Mysterious light switch

Hi everyone. I just bought my house and there is a single pole switch I can not figure out what it controls or even doing there. Single pole switch, red and black wire, both wires indicate hot when test regardless if the switch is on or off. No ground. Is it logical for a red and black wire to connect to a single pole switch and both wires always hot? Pic included... ( I hope)

Using a lamp I test every outlet switch on and off and it doesn't seem to control a thing.

My goal is to tap into a source for some LED ceiling lights in the living room.

**UPDATE**
I test red & black wires separately and they are both hot and using my continuity tester the single pole switch works correctly.
The other switch controls a floor level hall light
 
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Last edited by Griff1952; 07-05-19 at 09:26 AM. Reason: added info
  #2  
Old 07-05-19, 10:46 AM
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It probably used to control one or more half switched receptacles. If someone replaced one of the receptacles and did not cut the tab on the hot side then all of the switched half would be continuously on.

Open the receptacles in the room and any that have a red and black wire need the tab cut or the red removed and capped if you don't want them switched.
 
  #3  
Old 07-05-19, 11:45 AM
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Hi, what are you using to test for voltage?
Geo
 
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Old 07-05-19, 12:17 PM
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Originally a digital volt meter and voltage pen followed up by an analog meter.
 
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Old 07-05-19, 12:32 PM
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Joed, nice job. I found a receptacle with a red wire, removed it, problem solved... Thank you very much
 
 

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