Help! I'm replacing a 1xdimmer and 2xbulb lights with 1xdimmer and 2xhalogen arrays. I got as far as replaing the bulb lights and every thing works ok. I went to replace the dimmer and lost track of what connected to where. Incoming to the dimmer switch are two Red/Reds (earthed). I can only get one light to light up. Can you help?
Two Lights Two Red/Reds @ the switch
- Thread starter flasheart
- Start date
Sponsored Links
Not quite clear - are there two twin & earth cables at the switch?
And how have you connected them?
Sponsored Links
flasheart said:
You only have one permanent live. Use your multimeter to identify it.
You also need to look at the wiring of the light that doesn't work, because you've got a cable going there with only one core in use - what's been done with the unused one? Any trial and error to get the light going might be a bad idea if you don't know where it goes..
Done what?flasheart said:
Where do the two red cores from the switch go when they get to the light that doesn't work?
Ah - my mistake -
So two cables, A & B.
Both cables have a permanent live.
If cable A is connected to C & L1, light A works, and light B does not.
If cable B is connected to C & L1, no lights work.
Have you double checked the connections at light B? What happens at B if you temporarily connect the local permanent live to it?
I thought that meant you had only one cable with permanent live.when you said:
So two cables, A & B.
Both cables have a permanent live.
If cable A is connected to C & L1, light A works, and light B does not.
If cable B is connected to C & L1, no lights work.
Have you double checked the connections at light B? What happens at B if you temporarily connect the local permanent live to it?
OK - so heres some progress.
On Light B there's a RED/RED (one to loop and one to Live) and RED/BLACK (RED to loop and Black to N) - both earthed.
If I connect a standad bulb between L and N no joy. If I connect between L and E or L and Loop we have light.
Do you think the N return through Light A may be at fault?
On Light B there's a RED/RED (one to loop and one to Live) and RED/BLACK (RED to loop and Black to N) - both earthed.
If I connect a standad bulb between L and N no joy. If I connect between L and E or L and Loop we have light.
Do you think the N return through Light A may be at fault?
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
