Smoke Alarms.

[DH1875]

Anyone know why a smoke alarm continues to randomly go off despite there being no smoke or fire. The alarm in the living room keeps going off and then triggering all the other alarms in the house (kitchen, downstairs hall, upstairs hall) and it's doing my head in. The alarms are all connected to to mains so it's not the battery.
Cheers.

[Bostonhibby]

This quote is hidden because you are ignoring this member. Show Quote

Anyone know why a smoke alarm continues to randomly go off despite there being no smoke or fire. The alarm in the living room keeps going off and then triggering all the other alarms in the house (kitchen, downstairs hall, upstairs hall) and it's doing my head in. The alarms are all connected to to mains so it's not the battery.
Cheers.

Had the same problem with hard wired one, mates an electrician and when he came round he said there's 2 causes. Back up battery running down and that can trigger a constant beep, or alarm reaching end of it's useful life - there's a date on it.

Replaced battery and unit to be on the safe side. Problem solved. Hope you work it out.

Sent from my SM-A750FN using Tapatalk

[Just Alf]

This quote is hidden because you are ignoring this member. Show Quote

Anyone know why a smoke alarm continues to randomly go off despite there being no smoke or fire. The alarm in the living room keeps going off and then triggering all the other alarms in the house (kitchen, downstairs hall, upstairs hall) and it's doing my head in. The alarms are all connected to to mains so it's not the battery.
Cheers.

As previously mentioned, even wired arms will have a back up battery, if its not near the end of its life then sometimes if you give the thing a vacuum it can help improve the performance of the sensor and reduce false alarms.

Good luck!

[overdrive]

We had a similar issue with our wired alarms. All the advice said it was the backup battery. Changed all the backup batteries and that didn’t work. Contacted the manufacturer who suggested it would be a failure of the battery caddy. Sent us replacements and that fixed the issue.

Edit:

With us the battery caddies were corroded. Look for blue crap in and around the battery caddy if changing the batteries doesn’t work.

[overdrive]

Argh absolutely jinxed it with this. Now our co2 alarm is going off. Rather worryingly, it didn’t even wake my wife, despite me being partially deaf. More worryingly her response was “take the batteries out and go back to sleep”. Currently waiting on SGN coming out.

[Moulin Yarns]

This quote is hidden because you are ignoring this member. Show Quote

Argh absolutely jinxed it with this. Now our co2 alarm is going off. Rather worryingly, it didn’t even wake my wife, despite me being partially deaf. More worryingly her response was “take the batteries out and go back to sleep”. Currently waiting on SGN coming out.

They are sealed are they not? They start chirping when about to go dead, and you can't stop them.

[Just Alf]

This quote is hidden because you are ignoring this member. Show Quote

They are sealed are they not? They start chirping when about to go dead, and you can't stop them.

This.

Also to discount it being a CO issue, take it outside or well away from boiler/flu ... if it stops chirping then it could be a valid alert, if it continues, its near the end of its life and needs replaced

[overdrive]

This quote is hidden because you are ignoring this member. Show Quote

They are sealed are they not? They start chirping when about to go dead, and you can't stop them.

This one is just double A batteries. SGN came out. Confirmed noise it was emitting was consistent with a CO2 leak. But he couldn’t detect any CO2 leak. He suspects it is device failure even though the noise isn’t consistent with that. He’s turned off our gas supply just in case because it did make the noise (it’s also stopped making the noise) and we are awaiting an engineer from our service company coming out.

[speedy_gonzales]

To the OP, have you had any building work/decorating done recently?
I only ask as a couple of years back we had some building work done, tradesmen used cutting disks and although the laid tarps down everywhere, they didn't put (what looks like) a shower cap over the wired smoke alarm.
The resultant dust caused the sensor to trigger randomly and it took us far too long to figure this out.