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Can a circuit breaker fail? There is no power in my daughters room, but the circuit breaker seems to be fine. It doesn't reset or fix the problem.

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Make sure to click breaker completely over to one side and then click all the way back to reset.

Yes, breakers go bad.

You can check your breaker in a simple way.

Turn main breaker OFF.
Mark daughter's breaker.
Take cover off breaker box.
The main breaker will still have power on the lugs where big wires connect.
Rest of box will have no power.
Notice that each 120 volt breaker has a wire connected to end of breaker.
Use screwdriver and tighten this wire.
If screw is already tight, then loosen screw and pull wire out, and move wire to another breaker marked with same amperage. For example if daughter's breaker is 20, then move wire to another 20. Now there will be two wires connected to that breaker.
Turn power ON and see if daughter's room is restored.
This set up will work fine until you have time to replace breaker with same brand as marked on breaker box, usually available at home center (if available).

If power is not restored by moving wire, then there is a loose wire inside a junction box located in daughter's room.
Test each receptacle in room to confirm that nothing on that circuit has power.
If some receptacles have power, start opening other receptacle boxes looking for loose wire, especially at the quick-connects where wires stab into back of receptacle device.
If whole circuit is off, then to isolate location of loose wire, start at the ceiling box, and see if there is a loose black or white wire. Most electricians run wire from breaker to the ceiling box, and then other wires spread out from there and go box to box until each box has a black and white wire that connects back to original breaker.

Posted on Dec 29, 2010

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