Replacing an old 3 gang 2 way switch with a new one

[glaselect]

Recently I bought a new 3 gang 2 way switch from b&q to replace my old one. However my old one does not follow the same pattern as my new.

My old one looks like this:

TOP ROW:
L3 L2 L1 L3 L2
BOTTOM ROW:
L1 L3 L2 L1

I have attached photos below.

And my new one is:

COM1 L22 L21 COM3
L12 L11 COM2 L32 L31

For some reason I cant figure out how to replace it with the new one. All help would be great.

 

[mikeyd]

I've separated the 3 gangs with red lines.
Basically, you just need to swap top and bottom rows.

Your new switch is marked comX instead of L1
And LX1 and LX2 instead of L2, L3

Where X on your new switch is the gang.

 

[pete01]

Old.......new

L1........com 1

L2........L11

L3........L12

And so on, make sense?

New switch also needs an earth.

 

[plugwash]

The bottom row of the old switch maps to the top row of the new one and vice-versa.

It also looks like your new switch is metal and has an earth terminal, that terminal needs to be connected to the installation earth, there should be an earth terminal and/or wires in the backbox that you can connect it to with a short flylead.

 

[glaselect]

Ah makes sense, thank you.