extractor fan in bath room

aayush

Hi I have the above in my bathroom it comes on when I switch on my light switch in the bathroom but stops when I close the light  but I still hear the fan running even if stops inside the bathroom I have a switch outside the bathroom if switch it off then fan stops is it ok to do this or do I need to have the fan looked at ? as electricity is so expensive at present 

TIA 
Await your response 

RumRat

Does it switch of eventually (10 minutes), they usually have a timer that runs for a while after the light goes off to remove any excess steam etc. They don't use a lot of electricity.

summer_daze009

The fan keeps running when you turn the light off because it’s on a timer. It will automatically turn off after a set period (normally a few minutes) The switch outside is an isolator switch that you turn off if you need to work on the fan for any reason. It is working as it should and is not faulty. If you turn the isolator off and put the light on, the fan will not come on. It won’t cause any damage to the fan if you want to control it with the isolator

aayush

but the motor runs all night as can hear it now as well 

aayush

but fan inside bath room is off

aayush

summer_daze009 said:

The fan keeps running when you turn the light off because it’s on a timer. It will automatically turn off after a set period (normally a few minutes) The switch outside is an isolator switch that you turn off if you need to work on the fan for any reason. It is working as it should and is not faulty. If you turn the isolator off and put the light on, the fan will not come on. It won’t cause any damage to the fan if you want to control it with the isolator

why is the  isolator not stop running
 so if switching off the isolator and only switching it on when need a fan in the bathroom is ok? 

summer_daze009

So if you turn off the isolator the fan keeps running? 

aayush

summer_daze009 said:

So if you turn off the isolator the fan keeps running? 

no as the sound is from the isolator as fan has gone off in the bath room 

summer_daze009

Ok. You can control it with the isolator. If the fan never goes off when the isolator is turned on it sounds like the timer is faulty on the fan

aayush

summer_daze009 said:

Ok. You can control it with the isolator. If the fan never goes off when the isolator is turned on it sounds like the timer is faulty on the fan

how to fix that or just switch on isolator when need bathroom 

summer_daze009

You can just switch the isolator on and off when you use the bathroom if you need the fan. To fix the problem you would need a qualified electrician to come and have a look at the fan