I have some new switches to replace the tired old switches in the hallway and upstairs landing. The downstairs switch is a 2 gang 2 way, upstairs is 1 gang 2 way. I've looked at the existing wiring and am wondering if someone can fill in the blanks based on the diagram below, I'd like to understand more about the layout before changing the switches like for like.
The lighting is wired using junction boxes. Do the wires labeled A1 and A2 join to each other? Do B & C go to the J-boxes and where does the ? go. I've left the earth wires off for clarity.
Thanks in advance
The lighting is wired using junction boxes. Do the wires labeled A1 and A2 join to each other? Do B & C go to the J-boxes and where does the ? go. I've left the earth wires off for clarity.
Thanks in advance