Do extractor fans see dead people?

[opps]

I have two fans at home

One is an Icon with pir and humidistat the other is a manrose with pir only.

Both kick in at random as and when they feel like it

The manrose is upstairs so i can hear it chugg away with it's crap beaings.

Why?

Am getting grief- like it's my fault...

Is this common? BTW no spiders etc

Thanks in advance

 

[jj4091]

Are they built in pirs or seperate if seperate it should be possible to adjust the sensitivity so that moths & things don't set them off. But they are nortoriously unreliable anyway so may have failed, you would probably be better to swop them for pull switches.

 

[opps]

Hi JJ

They are both built in PIRs

I cannot see anything in the room that is tripping them.

Sometimes waving at the Manrose will cuase it to stop after the 1 minute runover.

I didn't know that they have a bad rep but I don't want pull cords because people don't pull them.

Thanks

 

[holmslaw]

..

 

[Muzz]

PIR's work on infrared, they are not pointing towards windows or anything are they? I seem to remember reading that can cause false detections.

 

[opps]

Both are on the only external wall in each room. To the right of the recessed windows.

Thanks