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Stud finder is showing AC over a large area

Posted on 7/10/19 at 9:35 pm
Posted by al_cajun
Baton Rouge
Member since Mar 2017
2442 posts
Posted on 7/10/19 at 9:35 pm
I am trying to hang some shelving but both of my stud finders are showing electricity over a very large area. I find it hard to believe the whole entire area has wires running behind it. Any suggestions?
Posted by ItzMe1972
Member since Dec 2013
9773 posts
Posted on 7/10/19 at 10:13 pm to
Yeah, I use the same stud finder.

Last week I was hanging curtains for my daughter. Sometimes it would accurately indicate the studs. Other times, a large area would be indicated.

I just put in anchors when I didn't hit the stud. I wouldn't be too worried about the possiblity of electricity.
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 7/10/19 at 10:56 pm to
Are you sweeping vertical and horizontal? Studfinders are all pieces of shite btw
Posted by keakar
Member since Jan 2017
29866 posts
Posted on 7/10/19 at 11:04 pm to
can you not tap in the wall and listen to the sound?

use nail to do the final zero in if need be

it worked for 50 years before that battery run crap
This post was edited on 7/10/19 at 11:05 pm
Posted by gumbo2176
Member since May 2018
15007 posts
Posted on 7/11/19 at 2:42 am to
quote:

Last week I was hanging curtains for my daughter. Sometimes it would accurately indicate the studs. Other times, a large area would be indicated.


When hanging curtains over window openings, it is not uncommon to find large areas showing structure under the sheetrock. You will have a couple studs on each side and a header across the top of the window framework.
Posted by LSUtigerME
Walker, LA
Member since Oct 2012
3789 posts
Posted on 7/11/19 at 8:05 am to
Where is the shelving? Are you sure there’s no wires in that area? There could be a panel on the other side of the wall, or a block of wires running through that area.

Also, higher voltage, larger diameter wires will show as a larger area.
Posted by kengel2
Team Gun
Member since Mar 2004
30676 posts
Posted on 7/11/19 at 8:10 am to
quote:

Any suggestions?


Well, its entirely possible that there are wires over a large area. Especially, if you are close to the panel.
Posted by keks tadpole
Yellow Leaf Creek
Member since Feb 2017
7572 posts
Posted on 7/11/19 at 8:54 am to
Use finer to get close. Cordless drill, smallest diameter bit you can buy, table spoon of drywall mud, fine point magic-marker as close to wall color as possible. Drill slow and shallow in a horizontal where the shelves will hide the holes. Find stud. Adjacent studs will most likely be spaced 16" in either direction. Wires should be running horz thru the middle of the stud, so don't drill deep.

If you have an older house, the AC could be tripped by a bad ground. Our house is late '60s so no ground wires, our fridge had a short and when the compressor turned on, everything had a charge.
This post was edited on 7/11/19 at 9:00 am
Posted by BoogaBear
Member since Jul 2013
5538 posts
Posted on 7/11/19 at 9:41 am to
In theory, wires that are run horizontal should have nail plates over the studs. I understand that is definitely not always the case.

You could shut the power off for a bit and run the stud finder over it to see if it's a false reading?
Posted by al_cajun
Baton Rouge
Member since Mar 2017
2442 posts
Posted on 7/11/19 at 1:02 pm to
quote:


Are you sweeping vertical and horizontal?

I was doing both in case I was on wire that was running either vertical or horizontal but it was lighting up hot almost everywhere I put it.
Posted by al_cajun
Baton Rouge
Member since Mar 2017
2442 posts
Posted on 7/11/19 at 1:03 pm to
quote:

If you have an older house, the AC could be tripped by a bad ground. Our house is late '60s so no ground wires, our fridge had a short and when the compressor turned on, everything had a charge.


It is definitely an older house so this might be my issue.
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