Hello everyone, please be gentle.
Our stairs lights have a mind on their own and depending on switch positions we cant turn one of them off sometimes.
I've changed the switches thinking one of them might be broken but it's still the same as before.
I've looked in the lighting circuits on here but I can't find our system. What's very confusing it both fuses can work both lights.
Downstairs
3 core cable blue = L11, red = L21, yellow = L12 and L22
2 core plus earth red = com1, black = com2
Upstairs
3 core cable blue = L12, red = L22, yellow = L11 and L21.
2 core plus earth black = com1, red = com2.
The new switches are marked L1, L2, L3 and I've worked out L1 = com 1, L2 = L11, L3 = L12 for one switch and L1 = com2, L2 = L21, L3 = L22 for the other switch.
If I have both downstairs switches down the downstairs light is on and upstairs switches won't switch it off, the upstairs upstairs switch will switch the upstairs light on and off
If I have both upstairs switches up the upstairs light is on and downstairs switches won't switch it off, the downstairs downstairs switch will switch the downstairs light on and off.
I've tried different combinations and I can make it worse but can't make it better.
I've got lots of combinations of switche positions written down but i think it will get too confusing. to write them on here.
Help please.
Our stairs lights have a mind on their own and depending on switch positions we cant turn one of them off sometimes.
I've changed the switches thinking one of them might be broken but it's still the same as before.
I've looked in the lighting circuits on here but I can't find our system. What's very confusing it both fuses can work both lights.
Downstairs
3 core cable blue = L11, red = L21, yellow = L12 and L22
2 core plus earth red = com1, black = com2
Upstairs
3 core cable blue = L12, red = L22, yellow = L11 and L21.
2 core plus earth black = com1, red = com2.
The new switches are marked L1, L2, L3 and I've worked out L1 = com 1, L2 = L11, L3 = L12 for one switch and L1 = com2, L2 = L21, L3 = L22 for the other switch.
If I have both downstairs switches down the downstairs light is on and upstairs switches won't switch it off, the upstairs upstairs switch will switch the upstairs light on and off
If I have both upstairs switches up the upstairs light is on and downstairs switches won't switch it off, the downstairs downstairs switch will switch the downstairs light on and off.
I've tried different combinations and I can make it worse but can't make it better.
I've got lots of combinations of switche positions written down but i think it will get too confusing. to write them on here.
Help please.
