One problem causes chain of circuits to go off

Cossack

Something got dropped into my upstairs bathroom light socket and caused a short, so the switch on the downstairs circuit breaker was thrown. I removed the object and turned the switch at the circuit breaker for the bathroom lights back on. When I threw this switch it somehow caused the outlets for a room on the other side of the house to go out and the switch for that room’s circuit breaker was thrown. I turned that switch back on and somehow the lights for the basement went out.
None of these lines are on the same circuit, and they are not related in any way that I know of. Please tell me what happened. This has never occurred before.
Thanks in advance to all who help.

frenchelectrican

By slim chance you may have MWBC { Multi Wire Branch circuit } if that the case you can effectaly kill it if the netural open up or any connection at one of the juncion boxes like other receptale and switches.

How many diffrent breaker you hit so far if two then that is the answer but if more than two diffrent breakers then we will go one step a time to troubleshooting this one { it will not be a easy task but it can be done if you understand this }

So therefore with some hevey short circuit some of the loose connection or subpar connection effectaly open up this is true with backstabbing switch or receptales they are famous for that.

Poor maded wirenut connection will do the same thing.

The last thing how old this house is ??

Merci.
Marc

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The answer will be based on NEC ( National Electrical code ) or CEC ( Cananda Electrical code ) or ECF ( Electrique Code France )

AllanJ

Check and retighten all the screws and setscrews in the breaker panel used to hold wires in place. (Turn off each breaker before touching its screw).

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The average homeowner who lost his house in the Oklahoma tornadoes should move for good and not rebuild. Too much complexity watchdogging the contractor. Too much a chance to be defrauded.

Jim Port

As has been pointed out by an electrician on this board, the problem sounds like a loose connection. The cabling in the wall should not have to be replaced.

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Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.

Cossack

Jim:

I do not understand where I am to look for the "loose connection." The screws holding the wires inside the circuit breaker?

AllanJ

Also at every switch box or receptacle along the way (daisy chain) to the dead light or receptacle.

__________________
The average homeowner who lost his house in the Oklahoma tornadoes should move for good and not rebuild. Too much complexity watchdogging the contractor. Too much a chance to be defrauded.

Cossack

Ok, I will try all that, but why would fliping one switch at the circuit breaker affect other unrelated circuits?

brric

Are the breakers in the panel all firmly seated upon the busses