On 16/05/2010 14:39, ARWadsworth wrote:
"Clive wrote in message
o.uk...
Guess which bit of electrical kit in my house has the scorch marks from an
overheating electrical connection?

Yup, the smoke alarm. I think the pin wasn't mounted to the board very
well.

Firex FADC230

Any preferred replacements? Mains/battery, ionising detector, mounted to a
batten on the ceiling, so no tricky bits. Screwfix have a "Dicon", a
"Fireangel", and a "Firstalert" - the latter two are 10 year battery
models. I see my Firex has a 10 year life despite being mains powered - I
guess this is supposed to be the lifetime of the radiation source.


I am surprised there were any scorchmarks due to the very small current that
is used.

Me too. But it is nicely brown, and the relevant pin did fall out when I
touched it.

A direct replacement is probably the easiest and having fitted hundreds of
these alarms I can assure you that it is not a known problem.

Thanks.