Switch Phases And The Machine Worked Correctly

I have a home that I only use from time to time.  At Christmas one of the GFCI outlets kept tripping.  This outlet has a TV/reciever/cable box/xbox/lights, etc. on the load side.  When I reset it, everything would be OK for 20 minutes or so, then it would trip.  I did not have time to investigate the problem so I just left it.  When I returned a week or so ago, the outlet was tripped and would not reset.  As soon as I pushed the reset button in, it would pop back out.  I replace the GFCI outlet but that did not help.  I removed all load outlets and inspected them.  Everything looked OK.  Anyone have an idea.  The strange thing to me is that the problem seemed to get worse over time.  (I.e. it stayed reset for 30 minutes at Christmas and now it will not reset at all).  Ideas?  Thanks in advance.
      

I bought a Panasonic FV-13VKS3 vent fan. The fan is designed to run continuously at a preset lower level (e.g. 50CFM) that can then be elevated to its max level (130CFM) when switched on. When switched off, the fan has its own built-in, adjustable countdown timer that returns the fan back to the low setting.



What I would like to do is use a Leviton LTB30-1LZ to control the high fan level. For example, I would set the fan's built-in timer to 5 minutes. And when I switch on the LTB30 for 30 minutes, the fan will kick in to high mode for 30 minutes, then the LTB30 turns off and triggers the fan's built-in timer for an additional 5 minutes before returning to the low setting.



My question is, is this possible and how would I wire this?



Looking at the fan's wiring diagram, I think the two red wires from the fan would be used to switch the fan's built-in timer. But I'm unsure where to connect these two red wires onto the Leviton timer.
      

My house was built in 2002. I just happened to notice that most of the outlets in the home measure 120v between the ground and nuetral. Is this normal ? If not what could be causing this and what should I do to fix this ?

Please advise.

Thanks.
      

I have an outdoor light fixture that I am trying to replace.  The house was built ten years ago.



When I removed the original lamp, I noticed one of the two leads was wired to the ground, and one was wired to the black wire, which is hot per my current sensor.  There are three wires in the box - black, ground (bare copper), and white or neutral, all from a single romex cable.  Unfortunately, I do not recall where the white was when I removed the original. 



I wired the new lamp per the instructions, something I have done many times before - black to black, white to white, and bare copper ground to ground.  Nothing.  The lamp and bulbs are brand new, and I have tried four separate bulbs.  I checked the black and neutral with my current sensor and with the switch on and the lamp installed this way, both show as hot. With the lamp not installed, the switch on, and the wires disconnected only the black shows as hot.  The switch is single pole, and appears to be wired correctly with a black to each screw on one side and a copper ground on the other.



Assuming the new fixture was bad, I reinstalled the old fixture correctly -  black to black, white to white, and bare copper ground to ground.  Still nothing. No light, and I confirmed the bulb is good by putting it in another lamp.   The only way to get it to light is to connect the neutral in the lamp to the bare copper ground.



I capped the wires, turned the circuit back on, and identified all the outlets, switches and fixtures on the same circuit.  I opened every one of them up (four lights and eight outlets) and found three (one switch and two fixtures in another room) where multiple commons connect.  All were properly connected.  My outlet tester shows all outlets as "correct".  I found no instances of grounds connected to commons or vice-versa.



Any ideas?  Is it proper to wire this thing the way I found it?



Thanks for any and all advice!
      

I'm new to this site.  But would appreciate some troubleshooting.  I just renovated my kitchen, gutted and all, finished in the Fall.  I did not replace wiring to the dryer, nor tamper with it, to my knowledge.  We did have an electrician add a small fuse panel.  We did not add more appliances then before, added some lights, but mostly used the room to separate things out.  Had a mentor do the wiring, many years of experience, very tidy and careful work, though not electrician by trade.  We have a standard 200 amp box as far as i know.  The house is 100 years old, but the wiring isn't.



In October my mother in law heard a very loud bang.  The electric dryer had been running.  She smelled smoke.  At the dryer receptacle was molten plastic sprayed onto the wall, caused by overheating at that point, due to I don't know what.  I thought maybe I had knocked something loose in the receptacle when i was drywalling around it.  I can't remember now if the breaker had tripped.  The receptacle and plug were toast. 



I replaced the receptacle, I replaced the dryer cord, not the breaker.   The dryer worked fine until february, when it stopped heating.  I found a bad thermal fuse and replaced it, the very common two pronged white one. 



The dryer worked fine until early April when it stopped heating again.  I checked all the fuses/thermostats on the back and the heating element, as I had done the first time.  Nothing was bad.  I checked the voltage coming out of the wall, as I had done the first time, only this time I did it correctly and got a reading that told me to check the breaker in the panel, which had not thrown.  When I checked the voltage between the Nuetral Bus and the two terminals on the Dryer's 30 amp breaker I only got a good reading on one of them, telling me that the breaker was bad.  While at the box, i noticed that to the main breaker, from where the conduit comes into the box from outside, the nuetral wires are bare all the way up, no insulation, and at the terminal of the main breaker they appear to have all melted together, even a couple small pieces have melted off of the "bundle." 



Switched the range 50 amp breaker with the dryer, dryer worked fine, nothing was back fed either.  Bought a new 30 amp breaker for the dryer and installed it on Saturday.  Also on Saturday we were given a dryer, about 4 years old, same as ours, so i hooked it up and saved ours for a spare, which I deemed still good since it seemed the breaker was the issue.  New Dryer worked fine from saturday until today.  Now it won't turn on, though it didn't cut out mid load yesterday either.  The breaker did not trip.  I repeat, no tripped breaker.  I just checked the voltage at the wall and it seems to have that same problem where one side of the receptacle gets a reading of 120, and the other a reading of about 5.  The problem must be bigger than the breaker.  I am not an electrician, I am a welder.  I have gone as far as I could on my own.  Thank you.
      

I have an older Kohler whirlpool (Tea for Two) that I installed and worked fine (occasional slight delay in starting).  I shut off the breaker to work on a vanity light installation.  When I threw the breaker back on, the tub would start on its own.  At first could shut it off.  Then had to turn the breaker off to keep it from coming on spontaneously.  The only way I can use it is to turn on the breaker and then wait for it to come on.  It stops after about 20 minutes (normal I think).  But then won't restart or restarts/tries to restart later, sometimes multiple times.  I have to shut the breaker off, or it will keep going on or trying to go on.  Runs fine when it gets started.  I am thinking it is the starter button and/or a timer problem.  Any thoughts?
      

I'm trying to fix a problem with a track light installment over the a bar I've just put in. I've done it before. never had issues. but this particular problem is driving me nuts. It just defies logic.  The electrician who actually installed the associated dimmer switches with this dining room area was called as it seems it may be a flaw with his wiring, but he's blown us off and I have to try and solve this myself.



This is how it's all set up. I've been rehabbing our home from top to bottom, and converted our old kitchen into a dining area. Within this dining area are four sets of lights, all controlled from one box containing four dimmer switches. I set up all the new wiring and installation of the lights in the ceiling, and we paid an electrician to come in, check everything out, set up the multiple switches, and connect it all to the board. It's all new copper wiring from beginning to end, as I didn't want to connect or splice in to the old aluminum wiring that was in place. All the new wiring and lights are on a dedicated 15 amp breaker. Three of the sets of lights were set up to be available from the day the electrician came around. The fourth, for the track light over the bar, was left hanging from the ceiling capped off and with the switch off, as I still had work to do installing an overhead wine rack, under which the track was going to be set.



Two days ago I finally got around to putting the track up, but after setting it in place and connecting the power up the lights wouldn't work. I took the lights out to our kitchen, where I installed another track light system some time ago, plugged one of the lights in, and it worked just fine. I then went back to the bar area and used a spare track, then a spare connector, to see if I could isolate the fault, yet neither of the items provided a solution. Now here's the weird bit - every time I tried checking the system out, I'd get 120 volts showing from the wiring and from the track when I'd test with the multimeter. But the second I'd put a light into the track, the multimeter would drop to zero on the voltage reading on either the wiring or the track. Take the light fixture back out, and the voltage would pop back up. Inserting the light was thus completing some kind of odd loop. It wasn't just one light - I double checked by grabbing working lights from the kitchen track and inserting them into the other track - the same problem would pop up. Finally, having come to the conclusion that there was nothing wrong with the track at all, I took the whole assembly over to a nearby wall outlet, used some spare electric cable to connect up to the appropriate slots - presto, the light came on! I even double checked all this by grabbing another light fixture destined for our bathroom, and tried connecting it to the wiring over the bar. Nothing. Yet as with the track light, the minute I took it over to the wall outlet and connected it, the light worked.



So everything logically points to the fact it has to be something to do with this individual circuit, right, because a) the light fixtures work when plugged into another circuit and b) the other three dimmers and lights hooked up in the same box work fine and draw power from the same wire cable/breaker combination. The only things left that I can think of is that the electrician has either wired the dimmer switch up incorrectly or that there's some kind of flaw inside the switch itself. Does this make sense?



A friend also told me to double-check to make sure that the black wire feeding power to the light was indeed the hot wire, and it is.  If I touch it with the black test lead from the multimeter and put the red one to the neutral I show 120 volts. If I keep the black test lead on the black wire and put the red test lead to the ground - I also show 120 volts.



A final point. I know I'm not overloading the circuit - not even close. With all four dimmers maxed and every light on - including the test light on the track - I'd only be drawing 8 amps on a 15 amp breaker, besides which I'm only using one set of lights while I'm working on this problem anyway. This is a dedicated circuit, so there's no additional power being drawn away by something else.



So how am I getting 120 volts from this wiring, according to my multimeter, yet it won't light up ANYTHING and keeps giving off the indication that some kind of loop or short is being created every time I actually plug a light into the track? It's got me totally stumped.



Anyone have any ideas?
      

I have a wall outlet I exposed recently. It was meant originally to supply an in-wall air conditioner (long since removed). The outlet is clearly a 120V, 20A fixture. The romex supplying it, however, has been marked in indelible ink by the installer: "220" on both sides of the wire sheath. The wire is 12/2 with ground. What did he mean by this? Could this really a 220V (or 240V) receptacle? Is that possible, using 12/2 and a standard 120V outlet? How do I verify what I've got?



All I want to do is relocate the box and replace the fixture, but the 220 notation sort of threw me. Does anybody have an idea what's going on here?



I appreciate your help. I'm new here, so please try not to smack the rookie around too much.
      

I'm buying a 12 lead Stamford generator, engine driven, and have a question or two about over current protection and ground fault protection.  I will normally have it wired for single phase 120 and 240 in the double delta configuration.  I may occasionally rewire it for 3 phase 240 in the series delta configuration.



For the single phase setup, what I've read so far leads me to believe I should have a main circuit breaker of about 125% continuous ampacity; it's a 10 kw generator.  Is that correct?  What kind of breaker do I need?  Should this main be a GFCI?  Do I bond neutral and ground?  This is a portable unit so I need to package a load center on the generator frame.  Can I wire one 240 receptacle directly to the main and two or three 120 volt GFCI's on it as well?  Or do I need another 240 breaker downstream of the main?  What should I be thinking about for swithching back and forth between single phase and three phase?  Alot of questions, trying to get smart and be safe.  Thanks.
      

I was given a table saw from about 1960 - actually a very good machine - it would cost a fortune nowadays, but a friend who felt he owed me one gave it to me before he moved to Florida. It has a 1 HP motor that has always worked fine and has worked fine for me in tests, but the cord is an old 2-wire version, and I want to replace it with a new cord.



The manual says to use a 10 gauge wire (the cord is about 6' long). I want to replace it with a 3-wire, grounded cord. Do I simply run the neutral wire on the new cord where the old white wire was, the black wire to where the old black wire was, and connect the ground to the chassis?



The switch is a single throw, double pole switch, by the way.



Here's a link to the manual, if that helps anyone: http://vintagemachinery.org/pubs/detail.aspx?id=2007