Manche757 Posted June 17, 2019 Posted June 17, 2019 That circuit should be ok. Go on the the other circuit and do the same test. Unplug anything that might be plugged in
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 3 minutes ago, Manche757 said: That circuit should be ok. Go on the the other circuit and do the same test. Unplug anything that might be plugged in .1v
Manche757 Posted June 17, 2019 Posted June 17, 2019 Also using the first circuit, and using the tester, touch the white neutral and the stove. What reading do you get?
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 1 minute ago, Manche757 said: Also using the first circuit, and using the tester, touch the white neutral and the stove. What reading do you get? Stove to 1st circuit neutral = 0 Stove to 1st circuit box =.1v
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 1 minute ago, Manche757 said: ok you have found the suspect circuit. Ok so it's circuit 2 that's the problem? Since the boxes are tied together it makes it seem like it's circuit 1?
Manche757 Posted June 17, 2019 Posted June 17, 2019 Lets label them circuit 1 and circuit 2. The first being the one that you had a zero read on. Circuit 1 looks to be ok. Circuit 2. Ground is energized and now to find out where. To confirm you got a 1 volt read with the circuit breaker off?
Manche757 Posted June 17, 2019 Posted June 17, 2019 Unplug everything on circuit 2. You might not know where that goes through your house. In 1969, there might have been only 2 or 3 120v circuits for the entire house. With the breaker for circuit 2 off, do the same test again. Tester to black and white at receptacle and tester to white and to stove. With the 1volt read, it is possible that a lamp or other low draw appliance is providing the feedback
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 Circuit 1 breaker on Circuit 2 breaker off Circuit 1 box to stove is 4.2v Circuit 1 box to neutral is 4.2v Circuit 2 box to stove is 0.3v Circuit 2 box to neutral is 0.3v Both breakers off Circuit 1 box to stove is 0.1v Circuit 1 box to neutral is 0.1v Circuit 2 box to stove is 0.1v Circuit 2 box to neutral is 0.1v Circuit 1 breaker off Circuit 2 breaker on Circuit 1 box to stove is 0.7v Circuit 1 box to neutral is 0.7v Circuit 2 box to stove is 2.0v Circuit 2 box to neutral is 2.0v The only thing plugged in as far as I know is the fridge on circuit 2. We moved it from 1 to 2 because we left 1 off overnight.
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 Both breakers on Circuit 1 box to stove is 4.6v Circuit 1 box to neutral is 4.6v Circuit 2 box to stove is 2.3 v Circuit 2 box to neutral is 2.3v
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 Unplugging the fridge didn't change anything. I can't find anything else tied to either circuit.
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 Just realized this fuse box with a switch under the sink is tied into circuit 2. NVM realized this is to the dishwasher. Doesn't change the voltage readings weather it's switched on or off.
Manche757 Posted June 17, 2019 Posted June 17, 2019 Good job getting the test reads. Confusing results though suggest grounding in different circuits. Test voltage from stove to cold water pipe.
Manche757 Posted June 17, 2019 Posted June 17, 2019 In that last pic, are there 2 white single wires? What are they connected to?
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 3 minutes ago, Manche757 said: In that last pic, are there 2 white single wires? What are they connected to? Yes. They connect to nothing. When we moved in we bumped one during the dishwasher install and it arched on the water pipes. It however doesn't show voltage with the proximity tester with all breakers on.
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 11 minutes ago, Manche757 said: Good job getting the test reads. Confusing results though suggest grounding in different circuits. Test voltage from stove to cold water pipe. Stove to water pipes is 0v
Manche757 Posted June 17, 2019 Posted June 17, 2019 3 minutes ago, Dzimm said: Stove to water pipes is 0v That is good. Stove circuit is ok. Stove itself is ok. That is a 50 amp circuit. Amps, not voltage, is what kills people. So the stove and circuit is not leaking power. It is providing ground from the leaking ground in the wall circuits.
Manche757 Posted June 17, 2019 Posted June 17, 2019 7 minutes ago, Dzimm said: Yes. They connect to nothing. When we moved in we bumped one during the dishwasher install and it arched on the water pipes. It however doesn't show voltage with the proximity tester with all breakers on. It if arched, it is hot. Are the ends of the two (are both white as it looks in the pic?) exposed and not taped off?
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 Just now, Manche757 said: It if arched, it is hot. Are the ends of the two (are both white as it looks in the pic?) exposed and not taped off? We capped them, they weren't when we moved in. Ive got an extension cord ran from a living room circuit to test with and found neutral on that to the water pipe is fluctuating between 0v and 0.5v
Manche757 Posted June 17, 2019 Posted June 17, 2019 With the extension cord, you were able to figure out which end of the extension plug is neutral? The assumption is that you have copper pipes and not pvc or pec
Manche757 Posted June 17, 2019 Posted June 17, 2019 that living room circuit is likely on one of the two kitchen circuits. Are the two white wires that you capped off connected?
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 37 minutes ago, Manche757 said: With the extension cord, you were able to figure out which end of the extension plug is neutral? The assumption is that you have copper pipes and not pvc or pec Yeah the cord is polarized but just realized it's wired backwards (someone changed the plug at one point) so that's a different problem.
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 21 minutes ago, Manche757 said: that living room circuit is likely on one of the two kitchen circuits. Are the two white wires that you capped off connected? What do you mean connected? And the living room circuit is a different breaker entirely.
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 So I went through every breaker in the house and tested with the probe on a circuit 1 receptical box and a probe on the receptical neutral. Constant - All breakers ON = 4.6v Breaker 24 off = 4.6-4.7v fluctuating Breaker 2/4 off = 4.6-4.7v fluctuating Breaker 21/23 off = 4.6-4.7v fluctuating Breaker 16 off = 4.7 Breaker 12 off = 4.7v Breaker 17/19 off = 4.7v Breaker 15 off = 4.7v Breaker 11/13 off = 4.7v Breaker 1 off = 4.7v Breaker 10 off = 4.6v Breaker 22 (circuit 1) off = 0.6-0.7v fluctuating Breaker 20 off = 5.2-5.3v fluctuating Breaker 18 off = 4.3v Breaker 6 off = 4.3v Breaker 14 (circuit 2) off = 4.1-4.2v Constant - Breaker 22 (circuit 1) OFF = 0.6-0.7v fluctuating Breaker 24 off = 0.7v Breaker 2/4 off = 0.7v Breaker 21/23 off = 0.7v Breaker 16 off = 0.7v Breaker 12 off = 0.7v Breaker 17/19 off = 0.7v Breaker 15 off = 0.7v Breaker 11/13 off = 0.7v Breaker 1 off = 0.7v Breaker 10 off = 0.6-0.7 fluctuating Breaker 20 off = 1.4v Breaker 18 off = 0.3v Breaker 6 off = 0.2v Breaker 14 (circuit 2) off = 0v Constant - Breaker 14 (circuit 2) OFF = 4.1v Breaker 24 off = 4.1-4.2v fluctuating Breaker 2/4 off = 4.1-4.2v fluctuating Breaker 17/19 off = 4.1-4.2v fluctuating Breaker 10 off = 4.1-4.2v fluctuating Breaker 21/23 off = 4.2v Breaker 16 off = 4.2v Breaker 12 off = 4.2v Breaker 15 off = 4.2v Breaker 11/13 off = 4.2v Breaker 1 off = 4.2v Breaker 20 off = 4.8v Breaker 18 off = 3.8v Breaker 6 off = 3.8v Breaker 22 (circuit 1) off = 0v According to this, I'm assuming +/- 0.1v is okay, this would mean these circuits are suspect: - Breaker 22 (circuit 1) - Breaker 14 (circuit 2) - Breaker 20 - Breaker 18 - Breaker 6
Dzimm Posted June 17, 2019 Author Posted June 17, 2019 So testing breaker 6, meter still on circuit 1 outlet neutral and receptical box. This breaker has an outside outlet, and two garage outlets. Plugged in is garage door opener, deep freeze, box fan, and sump pump. Unplugging everything individually results in no change except the garage door opener drops it 0.2v so there must be backfeed there. Switching breaker 6 off, it drops by 0.4v matching what is above. Could we say it's safe to rule out breaker 6?
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