Mystery Switch

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  #1  
Old 03-11-15, 09:14 AM
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Mystery Switch

I have a similar switch I would like to find out what it does. It is a standard (non 3-way) next to the front door at the base of the stairs. It is part of a 3 gang box, one of which is an outside light, another is hallway lights, and the mystery switch.
 
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Old 03-11-15, 10:20 AM
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Plug something into to each half of the receptacles in the room and try the switch.
 
  #3  
Old 03-11-15, 10:55 AM
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I already took the cover plates off the outlets and verified the tab was still intact.
 
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Old 03-11-15, 11:03 AM
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Then the switch will operate both halves or someone forgot to break the tab and the switch is constantly overridden.
 
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Old 03-11-15, 11:04 AM
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Do you have an outside post light or a box somewhere for future wiring of a post light?
 
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Old 03-11-15, 11:11 AM
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It is for the light in the dog house.
 
  #7  
Old 03-11-15, 05:39 PM
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Shot in the dark...

Turn it off and see if your furnace still runs.
I'm going to side with boss on this one though, probably a switched receptacle.
 
  #8  
Old 03-12-15, 05:03 AM
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