Wiring a 2 gang 2 way / 1 gang 2 way circuit

[jim46]

I'm replacing some old switches on the hall/landing. 1 gang 2 way upstairs, 2 gang 2 way downstairs. I'm having trouble even after I've followed the diagrams on the how to section. The house is from the 70's so I presume all the wiring colours are old too.

Upstairs switch has 3 wires (Earth, red, black with red sleeve) coming from above which I presume goes to the light, and 4 (Yellow, blue, red, earth) coming from below. I've wired it as follows, in common is red from below, L1 blue and red, L2 yellow and black with red sleeve.

Downstairs has 2 choc blocks (obviously has two switches) first one has red in common and black with red sleeve in L1, and second has red in common blue in L1 and yellow in L2.

Nothing happens with power and no doubt I've made a huge balls up, I've never done this kind of thing before and I'm struggling. Any advice is greatly appreciated. Thanks

 

[AndyPRK]

Neither upstairs or downstairs lights are working?

You have been unlucky.
Are lights in the rest of the house ok?

What was happening before you looked on the diagrams on this site?
Was it wired differently before?

 

[GaryGarden]

Have you got an RCD on your consumer unit? Has this tripped?

 

[jim46]

Lights in rest of house are all ok, box not tripped. Lights were all working, changed the switch's over, then nothing. I'm all out of ideas...

 

[AndyPRK]

I assume there werent any short link wires?

I think you better fit the old downstairs switch back on.

When you do compare and backs side by side
Look at the terminal markings and see if the terminals are in the same location and where you expect them to be.

 

[jim46]

All sorted, faulty light fitting. Replaced and all working, many thanks.