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Lights keep going out, without Circuit Tripping

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Lights keep going out, without Circuit Tripping cmfuld 08-22-2006
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Posted by John Grabowski on August 23, 2006, 6:27 am

> First time posting here, and this is gonna be longer than I want, so
> thanks in advance for your time.
>
> The lights in one room of my house used to flicker occassionally, which
> got to be really annoying, so we called in an electrician. He replaced
> the 15A breaker, and it seemed to work OK for a while. About two weeks
> later, the problem happened again, and he came back out to replace the
> breaker. This particular breaker controls 4 can lights in a room, a
> fan, an outside Security light, and the Garage Door Opener.
>
> About 6 months later, the lights in the same room, would just go out.
> The Garage door wouldn't open, and the fan wouldn't work. Basically,
> there was no power on the circuit, but the Breaker never tripped. If
> we Flipped the Breaker off and then back on, everything would work
> again, sometimes for days a a time, sometimes for just minutes.
>
> Last week, we called the electrician to come back out, and once again
> he replaced the breaker on Thursday. Sunday evening, the lights went
> out again, and we couldn't get them to come back on. So, the
> electrician came back out today. What we discovered is that the panel
> bus where this particular breaker is located has a little burn spot on
> it, and the breaker that he replaced on Thursday, also seemed to have a
> little debris on the area that connects to the bus.
>
> He made sure that the panel bus was cleaned, and that the new breaker
> had no debris, but by the end of the day, the lights in the room went
> out again.
>
> This particular room is an addition between the house and what used to
> be a detached garage. We are still unsure of exactly how this
> particular rooom was wired, but there are 3 separate switches that
> control the lights in the room, One switch that controls both the
> lights and fan, and another recepticle that has a switch for the fan,
> and a dimmer for the lights. The electrician and I were extemely
> confused by how this particular room was wired, but he is not sure that
> the room is wired with 4 way switches.
>
> The electrical panel for my house is actually in a pantry, and is
> extremely inconvenient to get to. My Electrician says that we will now
> need to replace the entire panel because the bus appears to be bad. He
> gave me a cost estimate of $1400, and said that he can get his guys to
> fix the wiring in the addition for $200 more. There is virtually no
> attic space above the pantry, as the entrance to the attic is on the
> other end of the house. The electrician wants to move the panel to a
> location that is more accessbile, so has suggested either outside the
> house(not a good option), or pu the panel into the living room which is
> not the most appealing, but we can work around it.
>
> None of the other outlets in the room are on this breaker, they
> actually come from a second panel in the Garage.
>
> We searched and searched for possible loose wiring, but he is convinced
> that the problem lies in the panel bus.
>
> What suggestions do you have, and are the prices that he quoted
> reasonable for the work that will need to occur. Also, is this
> something that can be done be a novice electrician, or is it imperative
> to have a certified electrian put th new box in.
>
> Thanks again for your help.
>

From the information that you have provided it sounds as though the
electrical panel bus at that particular circuit breaker location is shot. I
would install a new circuit breaker at a different location in the panel and
see what happens. It doesn't sound as though you have any other electrical
problems with this circuit. It is not that difficult to determine if 4-way
switches are being used, I suggest getting the opinion of another
electrician.


AppliancePartsPros.com, Inc.
Posted by hallerb@aol.com on August 23, 2006, 8:27 am
swap that power feed beteeen 2 different same sized current breakers.

if a 20 serves the room swap it with another 20 and see if the problem
moves.

this will answer for sure if the panel is the problem.

if you have any unused breaker slots move the feed to a new slot.

the price quoted is reasonable but i would confirm its the panel first


Posted by HeyBub on August 23, 2006, 9:41 am
cmfuld@gmail.com wrote:
> First time posting here, and this is gonna be longer than I want, so
> thanks in advance for your time.
>
> The lights in one room of my house used to flicker occassionally,
> which got to be really annoying, so we called in an electrician. He
> replaced the 15A breaker, and it seemed to work OK for a while.
> About two weeks later, the problem happened again, and he came back
> out to replace the breaker. This particular breaker controls 4 can
> lights in a room, a fan, an outside Security light, and the Garage
> Door Opener.

Betcha you got a defective connection on a stab-in connector. These are
usually found on wall outlets (perhaps one you're not using), but could
exist elsewhere. The defect is upstream of, and on the same circuit with,
the devices displaying the symptom.

As another poster suggested, swap the wires from the supposed defective
breaker with another and see if the problem moves. If you still have the
same problem, the fault is not with the breaker or its box.



Posted by Nickotype on August 24, 2006, 10:44 am

cmfuld@gmail.com wrote:
> First time posting here, and this is gonna be longer than I want, so
> thanks in advance for your time...

I ran into a problem like this last year and went through several
troubleshooting procedures to try and find the problem. Finally,
someone mentioned it might be a bad connection of one phase of power
from the power lines. I called our utility company and someone came
out that day and, though I never saw what they did, the problem was
gone and never came back. It was a simple, free fix.


Posted by Chris Lewis on August 24, 2006, 11:11 am
> He made sure that the panel bus was cleaned, and that the new breaker
> had no debris, but by the end of the day, the lights in the room went
> out again.

How did he clean it?

It seems to me that if you were to clean it properly (eg: a light
touch with a metal file or good scrub with garnet paper), and the
breaker was new (such that the connectors on the back weren't already
overheated), having it start misbehaving within a day means that
something _else_ is wrong (in addition or simultaneously), or the
bus is very badly damaged (but it didn't sound like it).

Eg: inherently overloaded, or some sort of subtle not-quite-trip
intermittent fault downstream.

Swapping this circuit onto another breaker would help diagnose
the problem.

It seems to me that the loading on this circuit may be a bit high
because of the GDO. Had you operated the GDO between the new
breaker going in and the problem recurring? Inspecting all
the connections would probably be a good idea.

If it turns out that that breaker position is the problem, given
that the panel is fully loaded now, replacing the panel is just
one option. Adding a small pony panel somewhere near is another,
and it'd be a lot cheaper (vastly less labor) than swapping out the main.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.

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