Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-31-2012, 03:20 PM   #1
Newbie
 
Join Date: Dec 2012
Posts: 1
Rewards Points: 0
Share |
Default

Elictrical Problem Please Help


Hey everyone please help here.I have a older 2 wire home, My light in my kitchen has quit working, so I took it down and went to replace it with a nice new one. Problem... My wires are now only reading 40volts, I went to the switch that controls it, only has 2 wires the hot and other. They also only read 40 volts. Just to make sure I took my reader to one of my outlets in the wall and it reads 118 volts. So I have no idea whats going on here. Any help is appreciated. Thanks so much Austin

Ajw0079 is offline   Reply With Quote
Old 12-31-2012, 03:49 PM   #2
Member
 
Join Date: Dec 2012
Posts: 63
Rewards Points: 0
Default

Elictrical Problem Please Help


I am not a professional electrician; rather an automotive technician for 26 years. It sounds to me like there is a voltage drop on the positive wire, possibly caused by a faulty fuse/circuit breaker, or bad connection in fusebox/circuit breaker box. Please have this checked by a professional electrician.

eric woodall is offline   Reply With Quote
Old 12-31-2012, 04:21 PM   #3
Semi-Pro Electro-Geek
 
Join Date: Jul 2009
Location: Arizona, USA
Posts: 2,552
Rewards Points: 4
Default

Elictrical Problem Please Help


I would bet you are using a typical digital multimeter, right? If you turn the light switch on and measure the voltage across the fixture with a bulb in, I bet it reads close to zero, right? The 40V reading is most likely "phantom voltage" - induced voltages on unloaded wires that your extremely sensitive digital meter picks up. You would need an analog meter or a "low impedance" digital meter to avoid this problem, but once you understand it you can live with it. It sounds like the circuit is not getting power. Have you checked the breaker or fuse that serves this circuit? Are any other lights or receptacles not working?
__________________
I am a lawyer, but not your lawyer. And who cares anyways? We're here to talk construction. This is DIY advice, not legal advice.
mpoulton is offline   Reply With Quote
Old 12-31-2012, 05:47 PM   #4
Member
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 7,596
Rewards Points: 128
Default

Elictrical Problem Please Help


The old fixture had two wires connected and worked. The new fixture has two wires. Connect them to the two wires from the old fixture and turn on the switch. If it doesn't work come back and tell use what happens.
__________________
Do not PM with questions that can be asked in a forum. I will not respond.
joed is online now   Reply With Quote
Old 01-01-2013, 07:44 AM   #5
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,951
Rewards Points: 16
Default

Elictrical Problem Please Help


Do not measure voltage across/between* two switch terminals, or across the two wires that were attached to a switch. This may give a reading but that is useless information for general purpose electrical work.

Those of you with considerable experience can make heads or tails out of such a voltage reading.

Normally you measure voltage across a hot wire and the neutral wire, or across two wires both of which are supposed to be hot supply wires. Hot to ground measurements are also generally useful but have to be taken with a grain of salt (and/or require some electrical experience).

* The places where you touched the two meter probes.
__________________
Stop wasting time re-adjusting the pattern. Have several lawn sprinklers, one for each pattern.

Last edited by AllanJ; 01-01-2013 at 07:48 AM.
AllanJ is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2 TVs fried: Electrical vs. Comcast Coax Cable Problem LynOprinka Electrical 17 07-16-2012 08:01 PM
Very Strange Shower Drain Problem MattWhite Plumbing 12 05-21-2011 11:53 AM
Don't understand this breaker tripping problem majesticjess Electrical 10 03-05-2010 06:42 PM
Stymied by window leakage problem. Matth3w General DIY Discussions 5 06-11-2008 06:26 PM
Post-Tension Slab Problem Advice/Help Mike McBride Building & Construction 2 01-09-2007 01:51 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.