Now, what does this light switch control...

I Saw OJ

Diamond Member
Dec 13, 2004
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The wife and I recently moved into a rental house, everything is great except I cant figure out what on earth this one light switch controls. Its in our main living room on a bank with another switch. It doesn't control the overhead light, lights outside, or any of the wall sockets...its gotta control something! Just what is it. land lord has no idea what it controls either.

Any DIY electricians that have any tips on how to locate what this switch controls without tearing up too much of the walls? I come home everyday and it just mocks me...
 

herrjimbo

Senior member
Aug 21, 2001
830
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81
it probably controls one of the outlets in the room. that way you could plug a lamp into it and turn it off and on via the switch. i have several outlets in my house that do this.
 

Red Squirrel

No Lifer
May 24, 2003
70,216
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www.anyf.ca
Quick way to confirm that it's actually controlling something, open it up, turn it off, and put an amp meter between the two screws of the switch. If you get a reading it's controlling an actual load somewhere. Though if it's controlling something without a load such as outlets or a light that is burnt you wont get a reading.

Also when testing outlets test the top and bottom. Often they are split so that one is controlled by the switch and the other isin't.
 

Crusty

Lifer
Sep 30, 2001
12,684
2
81
There is a ceiling fan/light combo in the room which it does not control. They are always "on" and operated with the pull chains.

Sounds like whoever installed the fan was lazy and didn't hook it up to the switch.
 

I Saw OJ

Diamond Member
Dec 13, 2004
4,923
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Quick way to confirm that it's actually controlling something, open it up, turn it off, and put an amp meter between the two screws of the switch. If you get a reading it's controlling an actual load somewhere. Though if it's controlling something without a load such as outlets or a light that is burnt you wont get a reading.

Also when testing outlets test the top and bottom. Often they are split so that one is controlled by the switch and the other isin't.

I'll do that with the meter, thanks. I've tested all the outlets in the room with a lamp and none respond to the switch.

Sounds like whoever installed the fan was lazy and didn't hook it up to the switch.

I was thinking that also, the fan is newer looking compared to the rest of the stuff in the house.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
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remove the face plate and see if that switch is even wired up
 

Turbonium

Platinum Member
Mar 15, 2003
2,157
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91
I have literally 2 light switches in my flat that don't seem to control anything. I just leave them in the "on" position, just in case.
 

Paperdoc

Platinum Member
Aug 17, 2006
2,461
358
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Where I live, any electrical outlet on the outside of the house is supposed to be controlled by a switch inside. Do you have such an outside outlet nearby?
 

Sho'Nuff

Diamond Member
Jul 12, 2007
6,211
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The wife and I recently moved into a rental house, everything is great except I cant figure out what on earth this one light switch controls. Its in our main living room on a bank with another switch. It doesn't control the overhead light, lights outside, or any of the wall sockets...its gotta control something! Just what is it. land lord has no idea what it controls either.

Any DIY electricians that have any tips on how to locate what this switch controls without tearing up too much of the walls? I come home everyday and it just mocks me...

Do you have oil heat? Could be a burner override switch.
 

CZroe

Lifer
Jun 24, 2001
24,195
857
126
Where I live, any electrical outlet on the outside of the house is supposed to be controlled by a switch inside. Do you have such an outside outlet nearby?

I came here to say that it could control an outlet but I've also seen this for indoor outlets plenty of times (control an outlet for a standing reading lamp next to a couch, for example).

Edit: Oh, and I really wish I could find a scan of the Earthworm Jim manual for SNES. The X button had no function so the page showing what each button did said something like "the X button turns on Mrs. Schultz's porch light in Germany... SO STOP PRESSING IT!"
 
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mnewsham

Lifer
Oct 2, 2010
14,539
428
136
Where I live, any electrical outlet on the outside of the house is supposed to be controlled by a switch inside. Do you have such an outside outlet nearby?

this, light switch in my living room controls the outlet just outside the front door o_O
 

who?

Platinum Member
Sep 1, 2012
2,327
42
91
Al Bundy never figured it out. Bob Rooney wound up stuck in the wall trying to figure it out.Al got out of bed,flipped the switch and the audience saw the light going on and off in the doghouse.