None of the outlets or lights in my bedroom work. My non-contact tester shows the outlets are hot. My three lamp tester shows no juice reaching the outlets ( no lights light up when it's plugged in). Nothing will turn on when I plug it in either. What could cause this? I've tested both testers on known power sources and they appear to be fine.

  • Your light tester probably requires something close to 120v. You may have a low voltage condition for one reason or another. Do you have any actual voltage readings? – isherwood Jan 4 '17 at 19:32
  • I had problems with non-contact testers, but I only paid like $15 for it. Same deal, I was doing some new runs and got false reads on it when I know the line was dead because I connected myself and hadn't plugged it into panel yet. – ecco88 Jan 4 '17 at 19:34
  • It doesn't show "no juice", it shows not enough for it to operate. Since these are cheapie "pass-fail" testers, with no real insight into their internal workings, this sort of reading is "par for the course": it's telling you "fail", which you already knew. – Harper Jan 4 '17 at 19:59
  • Have you checked the breakers and checked for any GFCI outlets in line with your bedroom wiring? Is this a new problem? Details, please. – Carl Witthoft Jan 4 '17 at 20:44
  • My voltage reads nothing on my voltmeter. Just found it strange that this is the only room in the house that this has occurred and it is the farthest room from the panel and service wire. There should be no wires running through this room that are carrying voltage to supply a farther room down the line. I was hoping that it would offer some insight as to why I have electricity to this room. Looks like it is just not connected to the panel. Now to find out where the disconnect is. Thanks for the feedback given by all and any more would be warmly welcomed. – user64660 Jan 4 '17 at 20:50

Non contact testers work by identifying an electrical field. The wiring normally is run in close proximity and the live wires induce a voltage that can be detected by the non contact tester but there is no potential or current available so the lighted tester will not light. This is normal and quite common I have more expensive Fluke testers and very cheap ones and they all work the same. You can duplicate this with 2 extension cords plug 1 in and put another one not plugged in next to the first. The larger the load on the plugged in cord the larger the field will be on the cord that is not plugged in but many times no load is needed to induce the field in just a few feet. (this is how transformers work but they have many wraps of wire to develop the potential).
Have you checked your circuit breakers? if the handle is partially tripped it needs to be moved to the off position then back to the on position to reset it. it is also possible that the circuit is protected by A GFCI device that has tripped other than a failed electrical connection.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.