I have only 1 circuit breaker panel. I was tiling and need to shut off
the power to my counter outlet. I turned off every breaker but still
had power. How is this possible? Can a breaker fail and continue to
supply power to an outlet when powered off?
And in case your TESTER might be dead, test before turning it off too.
That could mean little or no extra work, such as plugging in an outlet
tester (and making sure it works), then turn off the breaker and see
it go out.
if you still have power at the outlet even after turning off the main
breaker, have your electrician unplug the power company meter. if you
still have power it's coming from the neighbor's house.
Is this an apartment or condo? If it is, it could be you are getting
power from the neighbors breaker panel. Not uncommon in older
apartments. I once worked in an old building with 4 apartments. Talk
about a nightmare. Everyone was paying for the neighbors power. I
was able to separate all the outlets to the proper meters, but not all
the lights. I could have done it, but the cost would have been
outrageous for the owner and he told me his price limit and said to do
the best I could.
I am in a detached home, not sharing electrical with anyone. I tested
by plugging in a radio and hitting every breaker. The radio never went
off. So, lets assume I have a broken breaker. How do I locate the
breaker for this circuit or test each breaker to find the broken one.
battery powered radio.
You could disconnect each breaker in turn. Or check the voltage across
each breaker while they're all off (one will have 0 volts, the others
will be 120 v -- unless they're ALL bad).
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(1) leave all circuit breaker off and use a voltmeter (or a light bulb) to
probe the output of all breakers. If you find 120V, that's the culprit.
(2) first eliminate all the working breakers, then remove the uncertain ones
one-at-a-time until you find it.
(3) Froogle "circuit breaker locator".
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