Electrical Questions? Ask an Electrician Online.
No. I'm at my brother-in-law's place and didn't know I was going to be dealing with this kind of stuff, so I brought no tools. He doesn't have a tester.
In order to locate the problem you'll need a tester. You either have a bad connection on a phase conductor, bad breaker or a bad neutral connection. The issue may be in the service equipment or ahead of the service on the utility's distribution. Pick up a tester and we can pinpoint the problem and correct it when found.
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We tried replacing the breaker that we thought might be faulty even though it had not tripped. When we flipped the main breaker back on, we got some sparking from the neutral bus bar. Does that info help isolate the problem?
This all started when we replaced an outlet that had it's "hot" slot burned/scorched. Could that have resulted from a bad connection on the neutral bar? We're trying to figure out cause/effect.