nigmyk wrote:
I have three linked mains wired smoke alarms in the house I have just
bought. They go off by mistake about once a day. Does anyone know what
the fault is and how to rectify it?
Cheers Nigmyk

I can understand 1 going off,but all 3? sounds like something common to all
three, mains tripping them?
As advised disconnect all but one and do each the same in turn.
--
Sir Benjamin Middlethwaite