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Old 12-29-2012, 12:51 PM   #16
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Half of my outlets and lights went out last night


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Originally Posted by danpik View Post
As RRolleston eluded to...If you were losing incandescent bulbs quickly then you have a neutral problem somewhere. and changing breakers will not cause that. Why were the breakers replaced? When the electrician comes back have him verify that the power in the box on the bus bars is 120 volts on each breaker and not just the main. Not knowing how old the house is or the type of wire you have will make diagnosing this kind of hard for us
House is 80-ish years old with knob and tube. We tried to replace as much as we could, but didn't dig into the walls to do it.

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Old 12-29-2012, 01:07 PM   #17
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Half of my outlets and lights went out last night


Only thing that could cause high voltage on one leg and low on another is a bad neutral or maybe a bad transformer. I don't think it was your electrician.
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Old 12-29-2012, 03:18 PM   #18
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Half of my outlets and lights went out last night


i didn't read all the posts that were wrote back to you but did read where the poco said you were fine coming in. the only places to check to see if one side of the two legs are out feeding the interior panel is to put one meter probe on one leg of the load side of the main breaker feeding your panel (the screw on the breaker that tightens the wire to the panel) and the other probe of the meter to ground or neutral. have 120v or there abouts? go to the other side and do the same. 120v? if you have 120v on each side put the probes on both screws of the breaker. 240v? all this is done with the breaker on so be careful. if you have good voltage outside go to the interior panel and do the same with the meter probes put on the lugs where the main wire comes into the panel. i have seen corrosion build up here between the lug and wire where you can't see a problem with something like the heaters you described finish making an open in the circuit. where you have connections on any wiring is where most of the problems come up. if you are not comfortable doing this, turn off the main breaker feeding the interior panel. take a screwdriver and loosen then retighten the two screws on the breaker. with it still off do the same on the lugs at the interior panel. they may be flat head or allen wrench so make sure the breaker you turn off kills ALL power to the 120v of the house. also the breaker outside and if you have one inside can be pulled off and reinserted to see if there was an open at these connections too too. you don't have to remove the breakers completely just pull them out till feel them break contact. if this fixes your problem you know within four terminals where your problem was and probably wouldn't hurt to go back later and clean all four terminals up applying oxide-inhibitor to the connection.

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