Kitchen Light will not switch off only started happening recently

[DanielGemmell]

sorry if this has been posted in the incorrect place.

was at a friends house and since wedensday he has been unable to turn off the kitchen light.
i checked the light and all the connections are fine.
at the switch I'm getting 230v between live and cpc and 230v between neutral and cpc

both light and switch only have 1 cable at it which suggests its a joint box between the ceiling and the floor of upstairs.

i have yet to look in the board but i genuinely do not know hat could be wrong.

FYI i am still an apprentice so forgive me

 

[Richard Burns]

The switch contacts are probably welded closed from the spark on operation, for the cost of a new switch just swap the switch over and see if it now works.

 

[Brightspark2]

He said he only had one cable at the switch live and switched live, not Live and N

Just Re read and saw he tested at the switch!...

I wondered what every one was missing, turns out it was just me who was missing haha!!

 

[Pete999]

Just Re read and saw he tested at the switch!...

I wondered what every one was missing, turns out it was just me who was missing haha!!

Never mind, been on the beer then? ha ha

 

[Brightspark2]

Never mind, been on the beer then? ha ha

Nope, just over worked!!! Knackered!!

 

[Dave OCD]

Nope, just over worked!!! Knackered!!

Me too mate, two more days of hard work yet for me then a nice break, can't wait.

 

[7029 dave]

Sounds like the switch, as you are still in training, isolate remove the switch, use your multi meter to see if contacts are welded together. If so replace switch.