Bathroom light trackdown issue.

[Deleted member 310928]

Was there any recent work done?

The one time I saw this it was a twin to the bathroom light switch which had no CPC and a screw had been put right through the middle, shorting out the live and switched live when putting down loft boards.

No recent work done.

Any sort of work related to the bathroom and the loft not just related to electrics.

 

[JamToday]

Hi all,

No recent work done at all.

I think I may have tracked it down with your help. The switch next to the fan in the attic opened it up, and its wet inside.

I am assuming there is a slight leak (although none I could detect) from the roof tile vent used to extract as the switch is situated nearly directly underneath (this was installed by an electrician).

I have put it all back together and switched the switch off.

Is it also advisable to switch off the upstairs lights on the main junction box permanently and make do with temporary lighting until fixed?

Should I re-site the fan in the attic?

Or is the fan housing OK, and could I change the switch to be a waterproof outside version? If so, what do I need to look at?

Thanks for your help so far.

 

[Why Not Indeed]

I could be wrong, but.... moisture that condenses on the inside of that hose is going to run back down in to the fan. Maybe the fan is designed with that in mind so it doesn't matter.

 

[sparkwright]

I could be wrong, but.... moisture that condenses on the inside of that hose is going to run back down in to the fan. Maybe the fan is designed with that in mind so it doesn't matter.

I was thinking the same.
Have noticed when fan ducting goes straight up vertically, with no horizontal section of ducting, the fans tend to fill up with water.

 

[JamToday]

It sounds like I have to replace the switch, which is good news.

What should I be looking at buying?

 

[hllns]

The switch will probably be fine once it's not getting wet, the water is the bit that needs to be "replaced"

 

[sparkwright]

If you end up replacing it, it's a 3 pole fan switch.

 

[securespark]

Better make sure.

Can we have a better piccy of both those accessories near the fan?

 

[AndyPRK]

Is water tracking down one of the cables?
Inside or outside. I guess not.

I think I would just move the current switch a bit.

Screw it to the side of the wood with 1 screw. So switch vertical.
Drill a drain hole in the bottom.

No cable entries on top

 

[JamToday]

Have detected the issue: a very small split in the ducting condensing on the vent and dripping down (which I missed when I first looked ).

Have brought "Aluminium Insulated Flexible Ducting Hose" and fitted.

Will move the switch as suggested but need to fit new as its burnt out.



Am going for a 10A 1-Gang 3-Pole Fan Isolator Switch.

 

[SFK]

Have brought "Aluminium Insulated Flexible Ducting Hose" and fitted.

When I had this issue I also made the whole length of pipe and the fan as straight as possible between the ceiling hole and the roof hole.
Looking at you photo I would sugegst you consider mounting the fan on the wall and putting the Duct pipe as straight as possible.
SFK