Electrician Talk banner

troubleshooting

  1. General Electrical Discussion
    Hi all, I'm looking for some input. This is the situation; I have a customer who is getting astronomical power bills even during the covid stuff when the business was not open. I was called in to investigate it. Three phase 600v 400a main service entrance. The main disco feeds to a meter...
  2. General Electrical Discussion
    So I had to troubleshoot a ground fault on a swimming pool filter pump today, the only issue is, it wouldn’t trip while I was there, the home owner informed me that it only trips every once in awhile and it wasn’t raining or anything when it would trip either. I ran the pump for awhile to see if...
  3. General Electrical Discussion
    I was troubleshooting a light fixture today and found some splices that were not completely satisfactory. These were 4' strip, 2 bulb, T8 light fixtures. The switch for the fixture was turned off and all was good until I disconnected the neutrals at the light fixture we were working on. When the...
  4. Electrician Apprentice Forum
    Most have seen nothing like it, but as it is designed for beginners, I am curious what you all think about this free online electrical troubleshooting game? There is currently a little educational and skill increase value, when more faults are added it will better.
  5. General Electrical Discussion
    Hello all, Had a question with a problem I am having in our Mill. Currently in all my buckets I am reading a line to line voltage of 595 VAC. The issue I have is with my Line to Ground voltage. L1 - G -> 409VAC L2 - G -> 235VAC L3 - G -> 409VAC Anyone have an idea on what I should be...
  6. General Electrical Discussion
    I'm looking for some tips, help, or advice on troubleshooting this type of issue. I have a potential customer who just called and he said his power bill went from $400.00 to $1,200.00 in one month. He also said the power company said he was on track this month for the same at the end of this...
  7. General Electrical Discussion
    Thank you for reading. We bought a house last October and I'm having an issue with my back porch floodlight not operating. It is switched from the inside and had an occupancy/daylight combo unit on the fixture itself. I have replaced the bulbs, and taken the fixture down to make sure...
  8. Residential Electrical Forum
    I have a box with 2 switches in it one controls the light of a ceiling fan and the other presumably is for the fan but it doesn't work. to verify it was the switch that was bad I took the 2 wires off the switch and attached them to see f the fan would turn on. there was a mini fireball and I...
  9. General Electrical Discussion
    Today I got bit by a fixture lead that wasn't connected to any power source. This was surprising. The only thing I can guess is that since the neutral was still connected and the circuit that was still live, the LED driver transmitted excess current through the fixture and nabbed me when I...
  10. Commercial Electrical Forum
    So here is my problem. I have a commercial building, technically two buildings, joined in the center by a bridge called "the link". The link is fully lit and climate controlled, with seven ceiling mounted light fixtures running down the hall. Two of these lights, are 24/7 lights powered by a...
  11. General Electrical Discussion
    EDIT: My apologies for the misleading title on this post. It should read: "Who's fault is this?" Customer wants the heater to work. He doesn't want me to open it up to find out what's wrong, as that may mess up him being able to return it. I'm just trying to determine if there was anything I...
  12. Residential Electrical Forum
    What's typically a quick job turned ugly last night. The house is so trashed and full of s**t that I could only access a quarter of the outlets having this problem. I've got 2 circuits in the house that are reading 120 on the hot and neutral to ground. I had him unplug his vintage surge...
  13. General Electrical Discussion
    I think I learned something new this week. - I put a dedicated circuit in for a customer for her micro-hood and it trips intermittently. (Maybe every 3 weeks or so.) I tested the insulation resistances, looked at my work, and then I used the Siemens Intelli-Arcl tool on the circuit and found the...
  14. General Electrical Discussion
    I am new to the Forum, I hope I am in the right place for technical questions. Troubleshooting question: On a 950' start/stop control circuit I collected this info with all wire connections isolated except the power source. Ohming out wires while isolated shows all open circuits (no direct...
  15. General Electrical Discussion
    I have been recently contacted by a customer who has been seeing large spikes in her power bill. She also has a GFCI that is giving her a problem. - She has contacted the power company to put in a request to come and check the meter. (I believe she also said the power company admitted her usage...
  16. General Electrical Discussion
    I have a question that might sound silly but I am going to ask it anyway. I have a customer who owns an apartment complex that needs it's meters labeled. (What unit is tied to what meter.) He has a meter stack that has about 9 meters; one for each unit and one for the laundry room. Labeling is...
  17. General Electrical Discussion
    I'm new here as i found this site googling my problem hoping to stumble onto something. If this is in the wrong thread please move accordingly. I have 6 pot lights the keep tripping a gfi outlet.. I am hooking these up to a temp panel as the panel is not ready to go yet. The lights are...
  18. General Electrical Discussion
    This may be sound a little stupid but I need to ask. - I have a customer that complained of bulbs going out prematurely and I checked the voltages coming into the house and everything seems fine. I understand that a loose neutral, (or perhaps a hot too), will cause some voltage fluctuation and I...
  19. PLCs, VFDs, Motors and Controls
    Breaker keeps tripping Hello! I have an issue that I have been troubleshooting for a few days now and was hoping to pick a few brains to see if anyone has a suggestion. I have a pretty basic electrical system that runs a small motor (essentially a 50HP, 440Vac, 3 phase, 2 speed motor and brake)...
  20. PLCs, VFDs, Motors and Controls
    Hi, first post. I work at an industrial facility and was wondering what the best way to test auxilliary contacts and contacts in a contactor was. I am a level 4 apprentice and the journeymen here seem to basically guess at it, no real testing involved. I have seen you can use a scopemeter...
Top