Tinuva
The Magician
Ouch!Ugh, so I learned a few hard lessons... use a fscking multimeter to check which is the switch wire and which is the hot wire. In my photo above what's not immediately clear is that there were 3 live wires connected in a chocolate block, and then separately one wire on its own, connected either side of the old switch. There are 6 downlighters connected to this switch. My assumption was that the 3 lives were separate lines going to the lights, i.e. 3 lives, each split into 2 lights, so essentially the switched circuit. Turns out, they were hot wires piggy backing some other lights, and what I thought was the live was in fact the switched line to the lights.
Anyway, somehow through all of this I broke a shelly dimmer, so that's R400 down the drain. And then I couldn't solve it last night and ended up having to get a sparky (thankfully family) to come check it out for me this me, so no lights on that side of the house last night...
Somehow I figured out without using a multimeter what you only figured out now. I haven't lost a single shelly yet.
I realized, the new way our houses are wired, I have 2 sets of lights daisy chained from the DB board.
So from the DB board, a single set is on 1 switch. That has a cable that goes to the 1st light switch. From that light switch, I then have 2 cables outgoing to other light switches, and a single wire going to my 8 down-lights, in the case of the lounge. Kitchen I have 6 down-lights but again they use a single cable at the switch.
Be glad your house is wired like this, it means you have a neural at the light switches. Your photo's wiring looked exactly like my house's wiring.
This daisy chaining is the reason there so many cables at the light switch, and I bet @Steamy Tom is just not used to it.
