Led Lights Lit Dim While Switched Off

[Karl Andrew]

Hello everybody

i came across a nice fault/problem today, I changed some GU10 lamps for the LED kind and they are lit dim while switched off. I have installed 2 new circuits These are the circuits the LEDs are on (1 in a extension and 1 up stairs in the older part of the house) I know these circuits are sound. There is 1 other lighting circuit in the house which I haven't touched yet. And when I disconnect the neutral on the older circuit the LEDs go out.

There is one set of LED lights in the bathroom on the extension circuit that stops on and the other set of LEDs are on the up stairs lighting circuit ( so both different circuits)

in all the other rooms I have used the same LEDs and had no problem

also the affected lights are the last group on the lighting circuit. The house is RCD protected too

any help would be spot on

 

[ETradesmen]

Had this problem before...

carry out a voltage test at the fitting and I bet there is an induced voltage there. Don't use your continuity testers, use an actual mega tester.

Are they switched 2way?

because they're a weird DC lamp any voltage present will interfere with them.

Michael

 

[Karl Andrew]

One of the groups of lights is 1 way and the other is a 2 way

how would I get round this problem would it be worth rewiring the older circuit

 

[ETradesmen]

Nope. You will always have induced voltage on a 3 core and earth. It's very minute but enough to interfere with the LEDS.

Unless someone on here knows a way of minimising induced voltage...

its the permanent live in the 3 core laying next to the switch lives... Un avoidable my friend.

the leds I had problems with eventually went after 3secs. Very bizarre

michael

 

[Sintra]

Fit a snubber and that will resolve the problem.

 

[Elmer BeFuddled]

Is this where the use of snubbers come in? ^^^^^ Aah. Yes!! ^^^^^

 

[ETradesmen]

What is a snubber?

just googled it.

never used one.

 

[Karl Andrew]

Supresser capacitor???????

 

[Sintra]

Let me google that for you

 

[ETradesmen]

Never used one before...

Is it wired in parallel with the SW?

 

[Sintra]

Across L-N at last fitting on circuit.

 

[ETradesmen]

Oh. There you go.

even I've learned something today

thank you

 

[SYKRAPS]

Ring CEF they now carry an LED lamp that will remove the issue for you so just a straight swap

You only need to change 1 of them btw

 

[Karl Andrew]

Nicely that will do for me

cheers folks :bigear:

 

[Octopus]

Ring CEF they now carry an LED lamp that will remove the issue for you so just a straight swap

You only need to change 1 of them btw

Really, which model?