I have a very old (1970s) bathroom extractor fan which now fails to extract any air from my very humid (windowsless) bathroom
Managed to prise it off the wall and there's a diagram containing a statement "Double Pole Switched and Fused Connection unit" and a terminal block showing "L N T" The fan is activated when the light pullcord is pulled and switches off about 5 mins after the light is switched off. The fan extracts directly into the cavity wall (no pipe at the other end!)
I need to buy a fairly powerful replacement unit and was looking at the
Expelair Premier Range CF20 are here
Any idea which of these would 4 models be suitable (if any) - can I buy any fan and it will work or will only certain fans work with certain setups i.e. my pullcord. Ideally a humidity sensing one would be best but will this work if the light is switched off? How does that work?
Any advise would be much appreciated!
Managed to prise it off the wall and there's a diagram containing a statement "Double Pole Switched and Fused Connection unit" and a terminal block showing "L N T" The fan is activated when the light pullcord is pulled and switches off about 5 mins after the light is switched off. The fan extracts directly into the cavity wall (no pipe at the other end!)
I need to buy a fairly powerful replacement unit and was looking at the
Expelair Premier Range CF20 are here
Any idea which of these would 4 models be suitable (if any) - can I buy any fan and it will work or will only certain fans work with certain setups i.e. my pullcord. Ideally a humidity sensing one would be best but will this work if the light is switched off? How does that work?
Any advise would be much appreciated!
