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- 28 Aug 2018
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I've tried to replace a two way switch in my upstairs/downstairs hallway. I can't seem to get it to function correctly.
The setup is: downstairs is a two way, two gang switch. Upstairs is a two way switch. I've replaced the downstairs switch, ensuring that I moved each wire across to the new switch. There are three wires for the relevant gang: red, blue and yellow. The red is in the com, yellow on l1 and blue in l2. The second gang works just fine.
Upstairs, I haven't yet replaced the switch as I'd bought a single way switch by mistake, so it's just as before. Here there are far more wires; 3 red in l2; 2 yellow in l1; 1 blue in com; a blue and a black in an end block.
Currently, each switch can turn the light off and on, provided the other switch is set to 'off'. If the other is on, however, I can't turn it off.
I have tried numerous variations of the above wiring. I harmonised the l1, l2 and com wiring by changing the upstairs switch. That didn't sort it. I tried swapping l1 and l2. That didn't sort it! I've no idea why there are two wires in an end block.
Any suggestions very welcome as it's driving me insane
The setup is: downstairs is a two way, two gang switch. Upstairs is a two way switch. I've replaced the downstairs switch, ensuring that I moved each wire across to the new switch. There are three wires for the relevant gang: red, blue and yellow. The red is in the com, yellow on l1 and blue in l2. The second gang works just fine.
Upstairs, I haven't yet replaced the switch as I'd bought a single way switch by mistake, so it's just as before. Here there are far more wires; 3 red in l2; 2 yellow in l1; 1 blue in com; a blue and a black in an end block.
Currently, each switch can turn the light off and on, provided the other switch is set to 'off'. If the other is on, however, I can't turn it off.
I have tried numerous variations of the above wiring. I harmonised the l1, l2 and com wiring by changing the upstairs switch. That didn't sort it. I tried swapping l1 and l2. That didn't sort it! I've no idea why there are two wires in an end block.
Any suggestions very welcome as it's driving me insane