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Joined: Oct 2000
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This is something that I heard recently from a Local Inspector that demonstrates good deductive reasoning, I don't know if he thought of it but I guess he could have, He's pretty sharp. (purely hypothetical - not to code obviously) If you have a Light in the Attic and 3 switches in the Basement (1 turns on that light) - How can you fgure out, by yourself, which switch it is and only make the trip up to the Attic 1 time? The Attic is not within sight, no one else there ![[Linked Image]](https://www.electrical-contractor.net/ubb/confused.gif)
Bill
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Joined: Nov 2000
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Depending on the distance this might work.
Go to attic, attach a 9volt battery to hot and nuetral coming in from switch, now go downstairs and see what switch,in the off position gives you a voltage reading. You can also try wiring a recept. to the light temporarily and plugging in a radio with the volume on high and see which switch turns the radio on.
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Joined: Oct 2000
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Vin,
Hint: It's not that complicated. Much easier - No rewiring or testing of anything.
I don't think I would try that 9 volt battery idea.
Bill
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Joined: Oct 2000
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I would guess one is the basement light. Of the other two I would switch one on and leave the other off. If the attic light is on or off tells me which switch. just a shot in the dark ![[Linked Image]](https://www.electrical-contractor.net/ubb/smile.gif) Jeff
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Jeff, From where you are you can't tell what any switches are for. And you will only leave the switch location once to go to the Attic. Hint: No tools or test equipment needed. ![[Linked Image]](https://www.electrical-contractor.net/ubb/wink.gif)
Bill
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Why not just turn on all three switches? That would be too easy!! Don't keep us in suspense any longer. This is a good one!
Rick
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Joined: Oct 2000
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Ok, Here it is.. Turn on 1 switch and leave it on for a minute. Turn that one off and turn on another. Go to the Attic immediately - if the light is on you know it's the switch you have on. If it's off but the bulb is warm - it was the first switch. If it is off and cold - it is the last switch that you didn't try yet. ![[Linked Image]](https://www.electrical-contractor.net/ubb/eek.gif)
Bill
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Joined: Dec 2000
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Originally posted by Bill Addiss: Ok, Here it is..
Turn on 1 switch and leave it on for a minute. Turn that one off and turn on another. Go to the Attic immediately - if the light is on you know it's the switch you have on. If it's off but the bulb is warm - it was the first switch. If it is off and cold - it is the last switch that you didn't try yet.
Man,,,bill, you are one smart guy. I would have never though of that, but it is a perfect solution for this guy
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Joined: Oct 2000
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justagirl, Thanks, but I can't take credit for the answer. I heard it from someone. ![[Linked Image]](https://www.electrical-contractor.net/ubb/rolleyes.gif)
Bill
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