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Off is on, On is off, I think? #64278
04/03/06 09:49 PM
04/03/06 09:49 PM
HCE727  Offline OP
Member
Joined: Nov 2005
Posts: 186
Delaware County, PA, USA
I looked at a job the other day where a single pole switch controlled a light. When the switch was in the down position, it said on, but the light did not work. With the switch in the up position, it said off, but the light worked. How is that possible? Does anyone want to take a stab at it?


Hank
Work Gear for Electricians and the Trades
Re: Off is on, On is off, I think? #64279
04/03/06 09:56 PM
04/03/06 09:56 PM
S
ShockMe77  Offline
Member
Joined: Jun 2005
Posts: 821
Rahway, New Jersey
If the switch is upside down, in the on position it would say no. And in the off position it'd say ffo. I suggest installing a new switch and install it the correct way. That's what I would do.

Re: Off is on, On is off, I think? #64280
04/03/06 10:01 PM
04/03/06 10:01 PM
HCE727  Offline OP
Member
Joined: Nov 2005
Posts: 186
Delaware County, PA, USA
That's funny!


Hank
Re: Off is on, On is off, I think? #64281
04/03/06 10:28 PM
04/03/06 10:28 PM
J
JoeTestingEngr  Offline
Member
Joined: Nov 2005
Posts: 794
Chicago, Il.
That sounds like it might have been part of a photocell (or other) controlled lighting contactor circuit. I can think of numerous scenarios. I have a nasty habit of taking markers to unlabelled switches, disconnects, Et,c.
Joe

Re: Off is on, On is off, I think? #64282
04/04/06 12:44 AM
04/04/06 12:44 AM
W
wa2ise  Offline
Member
Joined: Nov 2002
Posts: 787
Oradell NJ USA
Mercury switch installed upsidedown?

Re: Off is on, On is off, I think? #64283
04/04/06 02:41 AM
04/04/06 02:41 AM
Alan Belson  Offline
Member
Joined: Mar 2005
Posts: 1,803
Mayenne N. France
2 way switch miss-wired as single way?

edit, [I just woke up, no coffee yet!]
Alan

[This message has been edited by Alan Belson (edited 04-04-2006).]


Wood work but can't!
Re: Off is on, On is off, I think? #64284
04/04/06 08:35 AM
04/04/06 08:35 AM
P
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
Quote
2 way switch miss-wired as single way?


American 2-way switches (3-way in U.S. terminology) have unlabeled toggles though.

Only simple 1-way switches have "On" and "Off" marked on the toggle.

Re: Off is on, On is off, I think? #64285
04/04/06 09:35 AM
04/04/06 09:35 AM
L
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
I'd have to agree with Mr. Wise: upside-down mercury quiet switch.


Larry Fine
Fine Electric Co.
fineelectricco.com
Re: Off is on, On is off, I think? #64286
04/04/06 11:26 AM
04/04/06 11:26 AM
N
NJwirenut  Offline
Member
Joined: Sep 2001
Posts: 806
Bergen County, NJ
Could just have been a bad day at the switch manufacturer, and the toggle was installed upside-down...

Re: Off is on, On is off, I think? #64287
04/04/06 03:48 PM
04/04/06 03:48 PM
HCE727  Offline OP
Member
Joined: Nov 2005
Posts: 186
Delaware County, PA, USA
NJW, you got it right. I went back to do the job that I looked at and had to replace that switch, that's what it was. I should have kept that switch.


Hank
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