Spotlights not working

[Swish]

My kitchen spotlights are split by one switch box with 4 buttons. I have six spotlights on one of the buttons that are not working, ( although if leave one lamp in it works although not full strength). I have tested the lamps they are all good. All other spotlights are working it’s only this button. So only this circuit of lights not working.

The switch appears to be connected properly ie no loose wires. It appears to be one unit anyway so would assume if loose wire it would affect all the spots..that’s an uneducated guess BTW!

Before I get a Sparky out what can I check next.

Thanks in advance

 

[JohnD]

Take out the bulbs and see what voltage they are

Photograph them for us

Switches/buttons too please

 

[chivers67]

You can swap over one working switch wiring with the faulty one and see what happens - if the one bank that was faulty suddenly works using a different switch then it points to the switch being faulty. If the same then need more fault finding

 

[Swish]

Thanks for replies
Being a bit simple here how do I swap over the switches
Photos attached of the switch, the lamps are 220-240v forgot to say this is not after any change it has just happened lamps been in situ since last July all working fine.

 

[terryplumb]

I would suspect the dimmer switch has failed. Which one of the switches operates the set of lights in question ?

 

[Swish]

2nd left switch operates, if you have one lamp in its dim put a second it it lights but appears dim….bit like me and electrics!…put another in and flashes then nothing works
Thanks

 

[terryplumb]

As suggested earlier by another member ,swap the wiring at the switch.
Take the wire from L1 terminal of second left switch ( that supplies your lights that don't work) and put it into L1 of the far left switch( that currently has a grey wire in ,remove it and put that into to L1 of the second switch). So effectively swapping them over.
Do this with power off.
Tell us the results

 

[JohnD]

also (easiest bit) check all the terminal screws are tight and the metal wires well gripped.

 

[ericmark]

Likely switches have failed. So next step is decide what to do. So I will try to give options so you can think about it.
1) Renew dimmer switch.
a) For tungsten version
b) For LED version
2) Swap dimmer for standard switch and fit smart lamps, assuming you want dimming.

The problem is LED lamps take less power to tungsten and so many dimming switches will not work with the reduced power, even when they do work, often a problem with flashing when switched off, or a shimmer when switched on, specially when not using a neutral.

So often better using smart lamps and a simple on/off switch. The GU10 lamps I have, some work OK with smart switches, others don't, so I have swapped them around to get them to work.

But if you have 20 lamps then swapping to smart can work out expensive, so it depends what you have.

 

[Swish]

Undid the dodgy terminal thought would reconnect before swapping terminals over and it has fixed the problem so assume was dodgy connection although they all felt tight earlier.

Genuine Thanks to you all for helping, without your wise words I would have still benn looking at the ceiling what to try next.

have a great day Gents!

 

[chivers67]

Fixed in a swish!