PIR switches on/off light but not extractor

[zazoupazou]

People are always leaving the light on in the downstairs loo, so I picked up a PIR motion sensor on eBay as a straight replacement for the light switch.

It was easy to install and worked perfectly with the light.

However, the fan - which has a timer to run for a short while after the light has been switched off - stays on permanently after the light goes off with the PIR switch installed.

it's not the fan, as I have replaced this in any case. The problem remains.

And advice appreciated.

 

[Steve]

If you replaced the fan as well, you have mixed up the live and switched live in either the switch of the light.

Open either, and swap the two lives around.

 

[breezer]

i guess there is just enough current flowing to make the fan think the light is still on.

 

[zazoupazou]

Think I've been stupid. When I got the replacement fan I should have got one without a timer!

The PIR swith has it's own delay timer on it and I could have relied on this.

I'm now wondering if there's a way to disable the timer on the extractor

 

[breezer]

connect the live and switched live together

 

[zazoupazou]

Hi Breezer,

I tried connecting live and switched live together and the fan (and light!) stayed on permanently. If I disconnected either then the fan did not come at all.

 

[flameport]

Remove the permanent live - you want only the switched live which connects to both the live and switched live terminals.

 

[zazoupazou]

I did it. You were right! Thanks

 

[breezer]

i see how what i typed does not read as i meant
I meant connect the live and switched live at the fan, so the switch switches on the live and swithed live. ill get my coat