Short circuit in electrical wiring if you have several light switches or light fixtures that are not working then there may be a short in the electrical wiring or most likely a loose connection has developed.
Wall light switch short circuit.
This circuit is wired with a 2 wire cable running from the light to the switch location.
There should be power at the light switch verify with the meter or non contact tester if power is there turn off the breaker and verify power is off now replace the switch wire for wire if it is a standard 2 wire switch just move the wires over in this case black white don t later but if it has a bare copper wiry that goes on the green screw on the new switch.
This will prevent the switch from working properly and could also be a fire risk.
The neutral from the source is connected directly to the neutral terminal on the light and the source hot is spliced with the white loop wire.
If any of the connections inside your switch are frayed then this can cause them to short out.
Use wall plate covers and light switch plates to protect from the danger that wires and cords can bring when exposed.
Learn how to fix light switch breaker overloads.
Turn off your switch s power and remove the cover.
Turn the dedicated circuit breaker back off to prevent any potential risk of danger for yourself then take the faceplate off the switch and inspect the wiring.
Wall plates come in three sizes standard midsize and jumbo.
At sw1 it is connected to one of the terminals.
Wall covers and outlet wall plates should meet your size and safety needs while fitting your decor style.
A break in a wire in the circuit can also cause this problem.
Most short circuits are caused by a live wire touching any of the other two wires in your switch.
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Pin1 of both the switches are connected with the phase or live wire and pin2 of both the switches are connected with the one end of the lamp.
The other end of the lamp is connected with neutral line of ac power supply.
This contact allows additional current to flow through the channel and overload your breaker.
A short circuit is caused when the hot wire black wire touches another hot wire or touches a white neutral wire.
The white wire is marked black on both ends to identify it as hot.
If you think you may have a short circuit try the following steps to confirm.