Have you checked....

[Zacs-Master]

Your smoke alarms batteries?

Well, that's my good deed for the day. Night night everybloody, night night.

[Jeza]

When the batteries need changing, why do the constantly beep a 3 in the morning and wake me up. Why not during daylight hours. I am unable a 3am to get the steps out to change it.

[Maydup]

Ours beep when they need changing too. But I can close the door on it and sleep through!

[ELVIS68]

Took mine out ages ago, fecking toaster used to set it off

Got another one upstairs on the landing, will check it in the morning ta

[queenofmean]

no but i know it works, everytime we open the oven after cooking it goes off

[zebo]

Ours seems to be mains run, the grill always sets the pesky thing off.

[squarebear]

Because you might have a fire at 4am Jeza...

[squarebear]

A mains run smoke alarm?! That's handy when the fire cuts the power off(!)

[owdhamer]

Could you pop round.

[Zacs-Master]

£60 call out charge owd. OK?

[boxtops]

As it happens - yes, OH has all the batteries lined up to renew them today.

[ummmm]

SB - they have batteries as back up.

[mazie]

Didn't know this...... Would explain why zebo has a mains one

"Since 1992 building regulations have required that at least one smoke alarm, wired directly to the mains, is installed in every new property."

[ummmm]

I used to have a mains one. They still need batteries.

[mallyh]

its the dinner gong in our house

[zebo]

Probably does have batteries as well, I've never looked, it certainly works!The house is 150 + years old but I think it must have been done when it was renovated beofre we bought it.