After some advice (dimmer switch)

[Midwest]

Opening the window only aggravates the problem

I don't care about the neighbours

 

[Ccx295]

when you changed the switch ,are the conductors for the switch in the
terminals !

Everything was tightly connected.

So after about 4 days of use I have removed the switch to check to see if everything still looks OK, which it is and there is no sign of this switch burning up.

My only concern is the state of the insulation covering the wires, especially the black wire - It still has a fair amount of the melted plastic covering the end near the connection.
I don't want to try to scrape the plastic off too hard and it ends up pulling away the rubber and exposing the wire.
Normally I would just cut the wire back but there isn't any spare length to play with.

I have attached some pictures of the wires so you can see. The black marks on the red insulation is the residue from the melted plastic.

Will they be OK like this? From what I can tell there is no exposed wire.

Thanks again

 

[Midwest]

I'd get that looked at, said the actress to the bishop. Might be cosmetic, but best get someone to check it out, preferably a competent electrician.

 

[elsparko]

looks to me like the backbox is barely deep enough for the switch without cables , those cables look like they have been squashed between the switch mechanism and the backbox

 

[Ccx295]

Yes it does look quite shallow.

I think I'll get someone round to quote us for a new RCD box and and maybe they will have a look at this whilst they are here

 

[elsparko]

Yes it does look quite shallow.

I think I'll get someone round to quote us for a new RCD box and and maybe they will have a look at this whilst they are here

is it concrete walls that have been raggled? cant tell whats behind the box from picture, if so making the box deeper is not much of an issue, if it was my house id have those damaged cables stripped back to healthy copper and re-connect

 

[telectrix]

And the best way to do that would be to refit 4" higher up the wall with a deeper box. then the cables would be long enough to strip back.

 

[Squid]

For now you could fit a single gang spacer to the switch, you may need longer screws though.