Hi,

We have mains powered (with battery backup) smoke alrms on three
floors. Today they have started going off for no apparent reason -
sometimes full aalrm, sometimes a few pips.

Is the cause likely to be the batteries need renewing?

TIA

"no-one" wrote in message
...
Hi,

We have mains powered (with battery backup) smoke alrms on three
floors. Today they have started going off for no apparent reason -
sometimes full aalrm, sometimes a few pips.

Is the cause likely to be the batteries need renewing?

TIA

More likely that one of the smoke detectors is faulty or full of dust

Adam

On Tue, 03 Nov 2009 20:09:18 GMT, "ARWadsworth"
wrote:

More likely that one of the smoke detectors is faulty or full of dust

Adam

Thank you, I have blasted it with some compressed air from a can. I'll
see or rather hear if that does the trick :-))

"no-one" wrote in message
...
On Tue, 03 Nov 2009 20:09:18 GMT, "ARWadsworth"
wrote:

More likely that one of the smoke detectors is faulty or full of dust

Adam

Thank you, I have blasted it with some compressed air from a can. I'll
see or rather hear if that does the trick :-))

My smoke alarms became more sensitive as they got older, even a steam iron
set them off so I replaced them.
R

ARWadsworth wrote:

"no-one" wrote
We have mains powered (with battery backup) smoke alrms on three
floors. Today they have started going off for no apparent reason -
sometimes full aalrm, sometimes a few pips.
Is the cause likely to be the batteries need renewing?
More likely that one of the smoke detectors is faulty or full of dust

Mine had a honking BIG spider in it, gave me quite a fright when I
gingerly took it apart [well unit sort of separates from the mains feed
which was still live] and the spider ran over my hand.