Bathroom light trackdown issue.

[JamToday]

Currently, my bathroom light and fan don't turn off.

I have replaced the light bulb and the bathroom switch just in case (the switch needed doing anyway), but that has not solved the problem.

What process could I go through to track down this issue?

I do wonder if this juction box could have some corrosion issues (I have read that this is a possible cause).



Any guidance is greatly appreciated.

 

[ETAF]

i cannot open the attachment

 

[EFLImpudence]

Did it used to work properly but now will not go off?

 

[Jurassicspark]

Was there any recent work done?

 

[ericmark]

Assuming did work, and you have already replaced the switch, then most likely seems to be the fan, often line and switched line taken to fan, so it can run on, so both are taken to fan so step one for me would be picture of fan connections then disconnect the fan.

 

[sparkwright]

Moisture in the fan, bridging the live and switched live?

 

[foxhole]

Currently, my bathroom light and fan don't turn off.

I have replaced the light bulb and the bathroom switch just in case (the switch needed doing anyway), but that has not solved the problem.

What process could I go through to track down this issue?

I do wonder if this juction box could have some corrosion issues (I have read that this is a possible cause).

View attachment 367820

Any guidance is greatly appreciated.

What is junction box connected to?

 

[sparkwright]

What is junction box connected to?

Bathroom light, bathroom switch, bathroom fan, supply L+N.

 

[foxhole]

Bathroom light, bathroom switch, bathroom fan, supply L+N.

How do you know OP has skills required to identify the correct junction box?

 

[Murdochcat]

Did it have a cover ?

 

[JamToday]

Thanks all...

Yes it used to work fine.

Was there any recent work done?

No recent work done.

Assuming did work, and you have already replaced the switch, then most likely seems to be the fan, often line and switched line taken to fan, so it can run on, so both are taken to fan so step one for me would be picture of fan connections then disconnect the fan.

Everything worked until a few days ago. (I assume thats what your getting at.)

Moisture in the fan, bridging the live and switched live?

@ericmark and @sparkwright So your both suggesting a fan replacement?

Did it have a cover ?

Yes, the junction box did have a cover (back on now) just so I could see what I was facing.

 

[Murdochcat]

Is the fan mounted in the ceiling?

If so remove the cover as condensation trapped by the cover can do exactly what you describe.

 

[securespark]

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.

 

[sparkwright]

How do you know OP has skills required to identify the correct junction box?

That was for you, because you asked. He's found the junction box - you can see the fan cable in it.

 

[terryplumb]

Show us a picture of the inside the fan including the wiring