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LED fitted, now other lights misbehaving!

Postby andyborris » Fri Jul 09, 2021 2:36 pm

Fitted a LED batten, replaced a fluorescent in the kitchen.
Now the other 3 lights in the circuit don't work if the LED is on, work fine if it's off.
And if I switch the LED off while the other lights are switched on, (but not alight), the other lights come on and the LED has a weird faint glow along half it's length.
This doesn't happen if the other lights are switched off before switching off the LED.
What could cause this?
Flat was built in the 1960's and has 1 way light switches.
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Postby Mr White » Sat Jul 10, 2021 2:04 pm

The information you give is too vague, so all I can say is you appear to have wired the new light wrong.
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Postby chriscba » Sun Jul 11, 2021 10:16 am

Post a pic of the new light conections
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Postby andyborris » Sun Jul 11, 2021 6:58 pm

Wires unchanged from the fluorescent fitting, 3 red lives joined together, 1 black with red sleeve is live feed from light switch, 2 black negatives to and from the other lights.

LED has a live and neutral and that's it.

Pretty standard I think? 4 other lights on the circuit, which don't work if the kitchen LED is on and when the LED is switched off and one of the other lights are switched on, the LED glows at about half power.
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Postby Mr White » Sun Jul 11, 2021 10:06 pm

What happens if you change the "double wago" to two other wagos?
or similar.
Something like

w1.jpg
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Postby andyborris » Sun Jul 11, 2021 11:26 pm

Mr White wrote:What happens if you change the "double wago" to two other wagos?
or similar.
Something like


Haven't tried, I do know that if I take one of the neutral wires out of the Wago, part of the circuit is dead, either the LED in the kitchen or the rest of the lights on the circuit, depending on which neutral wire I remove.

So not sure what doing the above would achieve ?

Perhaps, I've installed a LED that can't work on a circuit with other lights?
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Postby Mr White » Mon Jul 12, 2021 12:19 pm

I have never heard of a light that will not work/prevent other lights from working. (Providing it is a standalone light)
So it has to be a problem with the new light or a wiring error.
While you are changing the wago, why not put a plug on the flex you have on the new light and plug it in.
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Postby Mr White » Sun Jul 18, 2021 2:07 pm

andyborris, it has been over a week, what is the situation now?
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Postby andyborris » Mon Jul 19, 2021 11:09 pm

Got a electrician in, nice guy, turned out I'd wired the LED correctly and the other lights in the circuit were wired wrong.

Presume a previous owner had done this and because the fluorescent didn't light, I wasn't aware there was a problem, the LED with it's much lower power consumption did light at half power.

Glad it wasn't anything I done, I'd never hear the last of it from the wife!
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Postby Mr White » Tue Jul 20, 2021 10:13 pm

Interesting, and thanks for letting us know.
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