It would be very annoying if you had quite a few and they all did it at
different times though.
Brian

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"Chris Hogg" wrote in message
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On 8 Sep 2019 11:20:52 GMT, David wrote:

Every few days (I think) one or both of the mains smoke alarms cheep once.

On line search suggests that low battery should cause a regular cheep
(already experienced that and changed the battery).

There is also a suggestion that dust could cause a false alarm - but this
isn't an alarm, just a single cheep.

Has anyone else experienced this, and worked out what was causing it?

The alarms have been fitted for about 5 years.

Oh, and does everyone change their smoke alarms every 10 years?

Cheers

It's not just to indicate that the alarm is working, is it, a bit like
the continuous beeping they have in places like Sellafield?

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Chris