Connect the wires to the new switch. This house is over 100 years old and we dont know when this very old light switch was put in.

How To Replace A Light Switch In A 2 Wire Non Grounded Haunted Home
How to change a light switch with 2 wires. The blue wires were connected to the two terminals marked l. The orange wires were connected to the terminals marked 4 2. Attached the pigtail to the side of the bottom screw terminal of the switch. Turn off the power to the switch at the main circuit breaker or fuse panel. Unscrew the switch from the electrical box and pull it out with the. Leaving the wall box are four wires two blue and two orange.
Both old and new switches are manufacture by legrand. Identify the three different colored wires and attach the new light switch to the wires in the same way they had been attached to the old switch. How to replace a light switch ultimate handyman diy tips duration. Then use a voltage tester to make sure that the circuit is dead. Community answer connect the one black wire to the bottom dark screw of the other already wire configured switch. To replace this kind of switch follow these steps.
The actual outside switch just broke right off yesterday. A yellow or red wire nut can be used for this splice. The switch was working perfectly when i started to change it this is purely for cosmetic reasons. If the length of the two wires is long enough you can trim them shorter and use one of the cut wires for the pigtail. Strip 12 inch of insulation from each to expose the wire. You will see two black lead wires and one green grounding wire.
Essentially 2 black wires are attached to the bottom dark screw of one switch. If any of the wires seem weakened trim and re strip the end of the wire to meet your needs. All of the new replacements have 2 wires on. It is one black wire from the power source hot wire and a black wire from the neighboring switch. Unscrew and remove the switch plate. Inspect the quality of the wires.
Most dimmer switches come with wires already attached. How to splice wires how to solder how to crimp wire connectors duration.