![]() I've now disconnected all three alarms because they've been going off at all hours and we have a young child. The curveball is that the lights are all working perfectly, but the electricians that came yesterday couldn't find any mains power to any of the three alarms. Yes, from what you've said it sounds like the connection to the mains may be from the first smoke alarm (the new one upstairs) to the lighting circuit. I personally have a "feeling" it is to do with the fact you have 2 different makes of smoke alarm. So if a number of interlinked smoke alarms do not indicate they have mains, but some do indicate they have mains, the first place to check is the last smoke alarm that has mains. The last smoke alarm only has the mains and interlink. Mains and interlink from second smoke alarm to third smoke alarm (etc) Mains and interlink from first smoke alarm to second smoke alarm If it helps, Interlinked smoke alarms are wired as follows. ![]() ![]() silencing/hush facility, flush mount, photoelectric smoke alarm is intended. I would guess that if as you say the first two devices have a green light lit then as they are interlinked, the first place to check would be the 2nd of the two smoke alarms. current technical manual/data sheets and the requirements of the Authority. This is considered a good idea, since if there is a problem with your smoke alarms you can not turn them off at the "fuse box"īy connecting them to a lighting circuit you will not deliberately turn your lights off at "the fuse box" so the smoke alarms are always powered up. I would suggest that there being "no obvious connection in the fuse box" is because they are connected to a light / light circuit. ![]()
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