Page 1 of 5 1234 ... LastLast
Results 1 to 10 of 48
  1. #1
    Veteran Member
    Join Date
    Jul 2009
    Posts
    1,743
    Location
    IL
    Tractor
    B2710

    Default House voltage varying up and down

    Strange problem started today. I turned on coffee pot (1500W) and lights over kitchen sink dimmed slightly. Plugged the coffee pot into a different outlet in kitchen and turned it on, this time lights got slightly BRIGHTER. Went and got my voltmeter, voltage measures 130v without the coffee pot plugged in, drops to 115v and rises to 145v depending on what outlet I plug coffee pot into. Tried same experiment using a small space heater (1500w), same results. I haven't tried every outlet in the house, but I've tried this in 3 rooms and get the same result. Any thoughts what's going on, and where I should look next?
    Kubota B2710, New Holland CM274 front mower, Toro Zmaster ZTR, Ford 908 bush hog, New Idea manure spreader, Swisher trail mower

  2. #2
    Gold Member smalltown's Avatar
    Join Date
    Jan 2011
    Posts
    408
    Location
    Western Maine

    Default Re: House voltage varying up and down

    Beezfun I am not an electrician by trade, but I am sure one will chime in soon. In the meantime if it were me I would check the voltage at the main feed coming into the house to see if the problem is outside or in the house. Please be careful in the box!
    2011, JD2520, 62D MMM, 200CX loader, iMatch Quick Hitch, Ballast Box, #46 Backhoe

  3. #3
    Veteran Member
    Join Date
    Sep 2002
    Posts
    2,393
    Location
    Michigan

    Default Re: House voltage varying up and down

    Usually the problem is a bad common wire connection in the service panel.

  4. #4
    Super Member
    Join Date
    Oct 2003
    Posts
    7,345
    Location
    Northeast, Ohio
    Tractor
    TC-40D SS New Holland

    Default Re: House voltage varying up and down

    I would check to be sure you haven't lost power on one of the two incoming hot leads. It sounds to me like you have and power may be back-feeding. The utility co should dispatch a lineman if it turns out the problem is outside of your responsibility.


  5. #5
    Super Star Member LD1's Avatar
    Join Date
    Apr 2008
    Posts
    10,650
    Location
    Central Ohio
    Tractor
    Kubota l3400

    Default Re: House voltage varying up and down

    Is the voltage at the outlets varying? Or is it the main panel that is varying?
    ".........there is only one way to find out."
    "Ok, hold my beer and watch this.........."


    Ford 5500 Backhoe
    Kubota L3400GST W/LA463 FEL
    2005 Dodge 3500 4x4 Diesel
    8N Rebuilt and restored
    Bushhog 306
    3 Homemade wood hauling trailers
    Dolmar 6400 84cc ported
    Sachs-Dolmar 120SI Ported
    (4) Sachs-Dolmar 116SI Ported
    Dolmar PS540
    Sachs-Dolmar 115i
    Sachs-Dolmar 117
    Sachs-Dolmar 112

  6. #6
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,662
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: House voltage varying up and down

    Quote Originally Posted by Travelover View Post
    Usually the problem is a bad common wire connection in the service panel.
    Yes, the neutral splice at the service entrance or pole splice is likely bad. I have
    had this problem before. It was caused by the electric company failing to use
    dielectric paste at the meter connection. Our overhead wires are aluminum around here,
    and you can expect problems with these connections in 5-15 years, if no anti-corrosion
    paste was used. I made the utility redo all the service entrance connections and splices.

  7. #7
    Elite Member
    Join Date
    Jan 2010
    Posts
    2,634
    Location
    Northern, IL
    Tractor
    Branson 2400H

    Default Re: House voltage varying up and down

    Beezfun,
    Is it windy in your area? I have had trouble here with the wind shaking wires, branches, etc which caused the voltage to fluctuate. I called the local power company and it took them two or three tries to finally eliminate the problem. Never did get find out what they fixed. My voltage would float from 96 to 125 VAC with out any load change. Like you likes would dim and go bright etc...

    They checked my service to the house and it was coming from there line.

    good luck
    Artificial Intelligence will never overcome natural stupidity.

    Branson 2400H MMM & FEL

    JD 112

    BX1850 gone but not forgotten

  8. #8
    Veteran Member
    Join Date
    Jul 2009
    Posts
    1,743
    Location
    IL
    Tractor
    B2710

    Default Re: House voltage varying up and down

    I think I figured it out. On one hot leg in the service panel I have 105v, the other leg 135v. Went over to the neighbor's house, he has the same problem. We both hang off the same transformer on the pole out front, so I'm guessing that could be the problem. It's also been very windy around here the last few days (thanks oldnslo), so it's possible that's causing some of the problem. I called the power company, they're going to send someone out to check on it.

    I still need someone to explain how turning on the coffee pot can cause a light to get brighter...
    Kubota B2710, New Holland CM274 front mower, Toro Zmaster ZTR, Ford 908 bush hog, New Idea manure spreader, Swisher trail mower

  9. #9
    Platinum Member Qapla's Avatar
    Join Date
    Sep 2008
    Posts
    681
    Location
    Gator Country
    Tractor
    New Holland TC40D HST 4WD FEL/BH

    Default Re: House voltage varying up and down

    Like dfkrug said, the problem could be with "aluminum" wire connections. Depending on your power suppliers, they may come out and check it of fix it. Then again, they may say that their responsibility ends at the splice at the weather-head.

    Regardless, the connections need to be checked and this usually requires pulling the meter and this usually requires the power company.

    I have seen this before and most of the time it is these types of connections.

    However, has it been unusually dry in your area? I have also seen a case where the ground rod had to be watered to correct a power problem since the ground was too dry to give the house a ground. They even drove the ground to 24' deep, but since the house sat on a "sandy hill", when the weather got really dry, they had to water the ground rod.
    New Holland Workmaster 45 2WD Gear
    Massey Ferguson 240
    New Holland TC40D HST 4WD
    NewHolland 16LA FEL
    Woods BH 70-X Sub-frame Backhoe
    Troybuilt Super Bronco w/42" mower
    Husqvarna DRT 900 Tiller
    Ariens 6.5 HP String Mower
    Husqvarna HU625WT String Mower

    3 point hitch attachments:
    single plow, double plow, 5' & 6' deck mower, tiller, 2 cultivators, planter, fertilizer spreader, disk set, sprayer, and a few homemade attachments

    30 acres, 15 acres, 5 acres

  10. #10
    Veteran Member
    Join Date
    May 2005
    Posts
    1,398
    Location
    N. E. Florida

    Default Re: House voltage varying up and down

    There is a problem with the neutral.
    I had something similar when I lived in the city. I had 119 V on one leg and 126V on the other.
    I called power company and they sent out 3 trucks that evening and changed my service line in the pouring rain!!
    They seemed to think it was urgent, I guess there is some danger to the homeowner when this occures.

Page 1 of 5 1234 ... LastLast

Similar Threads

  1. Voltage Regulator
    By matthoffman33 in forum Chinese Tractors
    Replies: 14
    Last Post: 11-01-2011, 12:53 AM
  2. VOLTAGE REGULATOR
    By bob c in forum Yanmar
    Replies: 2
    Last Post: 03-17-2008, 05:59 PM
  3. voltage regulator
    By gigem75 in forum Cub Cadet Tractors
    Replies: 1
    Last Post: 02-08-2008, 09:30 AM
  4. Voltage Regulator
    By frank77367 in forum Yanmar
    Replies: 2
    Last Post: 03-28-2005, 10:50 AM
  5. Voltage Regulator ID
    By 149owner in forum Cub Cadet Tractors
    Replies: 4
    Last Post: 06-14-2002, 07:24 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.