Hope you can help, I have just fitted a new wall switch, 2 way, 1 switches on the downstairs light and the other switches on the upstairs light (2 way)
I wired the new switch exactly the same way as the old one, alas when I switch the breaker back on it blew the fuse and the upstairs lights blew. I re-fitted the old switch and it works fine. What am I doing wrong?
Sorry it has taken so long, I have had the builders in!
As you look at the switch the left side has black (N) going into L1 and red (L) going into COMM. On the right side it has N going to L2, L going to L1 and yellow which I only assume is Earth going to COMM. There is also another set of wires behind (red, blue and yellow) that are just hanging down? there is also a earth wire connected to the screw on the plate?!?
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