Replace Light Switch Back Box
Then you ll need to install a new two way switch at the second control point.
Replace light switch back box. Unscrew and remove the switch plate. To replace this kind of switch follow these steps. Start by running the cable between the two switch positions and installing a mounting box at the new switch position. 1 strictly speaking should i dig out the timber block and replace it with a new knockout box.
Firstly you must replace the original switch with a two way fitting. 3 posts page 1 of 1. You d do this if your existing back box is damaged or you want to fit a deeper back b. Unscrew the switch from the electrical box and pull it out with the wires still attached.
To replace a light switch start by disconnecting the power to the switch by shutting off the breaker for the room. This video shows how to replace a metal back box in a solid brick wall. I want to replace a light switch but the back box turns out to be a piece of timber set into the plaster which raises a few questions. Then use a voltage tester to make sure that the circuit is dead.
As you dont wish to take the back boxes out that you have installed and chip out the hole s to make it deeper for a deeper box to fit the only thing i can suggest is a surface mounted pattress. Turn off the power to the switch at the main circuit breaker or fuse panel. So if you re changing to a metal light switch you can either terminate all the cpc s in the earth lug on the back of the switch or if it s easier run a fly lead. My other suggestion is very carefully clean aand chip away around the existing box and take it out and then chip away to make the hole deeper for a back box your dimmer switch will fit into.
By rossmcd thu jun 28 2007 1 34 pm. However a plastic light switch does not have an earth terminal on it so the cpc s are terminated in the back box. Now get the replacement light switch ready. My current back boxes are only 16mm deep for which there is very limited product availability.
Once the power is cut remove the switch cover and mounting screws with a screwdriver and pull the old switch from the wall. Replacing light switch back boxes.