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.
Wall light switch short circuit.
As you can see in the schematic diagram of 2 way switch circuit below the common of both the switches are short circuited.
A break in a wire in the circuit can also cause this problem.
At sw1 it is connected to one of the terminals.
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Turn off your switch s power and remove the cover.
Learn how to fix light switch breaker overloads.
If any of the connections inside your switch are frayed then this can cause them to short out.
A short circuit occurs when the intended flow of electricity is interrupted such as when are wires are accidentally in contact.
Most short circuits are caused by a live wire touching any of the other two wires in your switch.
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 contact allows additional current to flow through the channel and overload your breaker.
If you think you may have a short circuit try the following steps to confirm.
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.
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The white wire is marked black on both ends to identify it as hot.
This circuit is wired with a 2 wire cable running from the light to the switch location.
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The other end of the lamp is connected with neutral line of ac power supply.
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.
A short circuit is caused when the hot wire black wire touches another hot wire or touches a white neutral wire.