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  1. General Electrical Discussion
    Hi - I recently had my Fujitsu Halycon minisplit unit cleaned by a professional company filters and coils cleaned - speedclean coilshine and Nu Calgon Deodorizer used. Since then, my minisplit unit makes an odd buzzing/chirping noise when it is OFF. It only happens when it is turned off (or...
  2. Structured Wiring
    Hello everyone. I hope that he will not commit any crime asking for something obvious to an electrician in the USA, but from my European perspective, not all matters related to electrics in the USA are so obvious. I am doing a new project and I am wondering whether it is acceptable to use...
  3. General Electrical Discussion
    I'm trying to figure out what is causing the hum in my subwoofer and guitar amp in my basement and I think it might be something going on with the wiring. I don't know much about ground loops but I have one subwoofer that has hum when I plug in the signal cable to it and my guitar amp has...
  4. General Electrical Discussion
    Customer provided LED pendant light. Driver has usual wires in. But only 1 wire going out. It attaches to 2 of the 3 suspension cables which appear to be tiny coax cables. I just don't see a return path to the driver. Could it be using the ground conductors? I'm sure very little power comes...
  5. General Electrical Discussion
    I put up a new light fixture in a bedroom the other day. It worked just fine and then later when my wife turned on the closet light the closet bulb faded out, there wasn't a pop or anything just a fade out and now there's no power to the new fixture, the closet, or the adjoining hallway. But all...
  6. Residential Electrical Forum
    My brother and I were a bit hasty this weekend when switching out a bathroom lighting fixture and didn't make note of the pre-existing wiring, thinking it would be a very simple swap out. Unfortunately, when we got the old fixture out, we realized that we actually had four different romex...
  7. Residential Electrical Forum
    Bought a light/fan combo but wanted to wire the two functions on separate switches. Got this switch, which has a spot for fan, light, hot, and ground. Here's what I have currently (There's another switch that uses this box for power, I found out). When I tested with this configuration, the light...
  8. Residential Electrical Forum
    I have three switches in the half bath. One got the overhead light, one for the vanity light and one for the fan. I’m replacing all there with decora type switches. The vanity is getting a regular toggle switch. The overhead light is getting a motion detector switch. The fan is getting a timer...
  9. General Electrical Discussion
    I ordered a Hunter Jetty ceiling fan for installation in our outdoor pergola. Jetty Outdoor 52 inch The fan comes with only a wall switch (knob) and my plan is to not install the switch and install a universal fan remote control kit. I read some questions asked by others about adding a remote...
  10. General Electrical Discussion
    Hey everyone, New to the forum, but not to DIY. Pretty handy with most things (cars, general carpentry, DIY around the house, etc), but not afraid to ask for help when I need it and for this project wanted to consult some of the experts so I get it right the first time since it'll be a pain to...
  11. General Electrical Discussion
    There are 4 lights total, and when I turn on the switch, none of the lights come on. I have checked with a multimeter to confirm that there is 120VAC between the line and ground at the switch. I have also used a voltage checker to confirm that all four lighting fixtures have voltage when the...
  12. General Electrical Discussion
    Good evening all. My wife and I recently bought a house and our inspector missed some major electrical issues that I am now trying to diagnose. I'm hoping that someone might be able to shed some light on this situation. So we initially noticed that we had around 12 outlets not working in the...
  13. NEC Code Forum
    I am trying to figure out how to wire a cluster of 5 Induction heat cooktops on a table with Qty-1 2200W, 220V, 1 Phase Main and Qty-4 800W 220V, 1 Phase (each) Auxiliary, each supplied with 220V, 20A cord/Plugs. I have 208/120V, 3 PH, 4 Wire 225A Panel as Power source. Can I bring 2-2P-20A...
  14. Linework
    I apologize in advance if this is not the section where this thread goes. I build Motorized Bikes as a hobby/side job and have finally got around to installing a 12V DC charging coil on my own personal build. This is my first time working with wiring a charging system, basic DC wiring is ok...
  15. General Electrical Discussion
    I preform low voltage and occasionally high voltage work electrical work in residential & commercial buildings, there is a C10 contractor on the job site, I'm also completing some trainee classes at a community college that's authorized by the state to offer the training. I would like to become...
  16. General Electrical Discussion
    I am a homeowner and I don't know much about electricity other than basic wiring. I was replacing some ceiling light fixtures today and I am unsure of the existing wiring situation. There are 4 wires coming into the box. Each with a black, white, & ground (12 individual wires). The way that it...
  17. Commercial Electrical Forum
    Can I tie together two 14/3 lamp wires from two separate ballasts into one 12/3 wire for my run and then back into two separate 14/3 at the lamp sockets? My runs are long and I'm wiring up 16 lights with 16 ballasts but I'm hoping to do two lights per extension to save on material costs. The 16...
  18. PLCs, VFDs, Motors and Controls
    Hi there, I am running a wire from my 1HP VFD to my 1/2 HP motor. I have decided to just run 12/3 BX instead of the braided cable because there are no other sensitive loads around. It's a short run. 10ft so I am not worried about noise. But my question is, the peckerhead on the motor has a KO...
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