On 5 Nov 2005 03:59:46 -0800, "stixwix" wrote:

Hi,

I have one of the above with an automatic shutter that opens when it is
switched on (this makes quite a loud noise when it opens). The fan
itself still works but the shutter now fails to open (and makes no
noise). Does anyone know whether these things have replaceable parts
such that this shutter opener could be repaired?

If it's the type with a lot of horizontal slats all coupled together
they can get stuck solid with grease. This will respond to a good
soaking in hot water and washing up liquid.

The slats are operated by a mains solenoid which I suppose can fail,
or can also get gummed up.

If the noise you refer to is 2-3 seconds of loud buzzing followed by a
whack as the slats open, that buzzing is a sign it's getting greased
up, a pristine one opens instantaneously.

These people have branches throughout the country.

http://www.fansandspares.co.uk/home.htm

DG