Smoke alarm went off last night repeatedly. On (increasingly irritable) investigations, not a fire in sight.
It did coincide with the coldest night of the winter so far. I believe temps hit -12 here in the early hours.
Some online research suggests this can happen -
Has anyone else experienced or heard of this?
Bingo! Same here. The last three or four nights it's been beeping randomly from about 3 in the morning. Driving me crazy.
Thought it was the battery origianally but looks like it's the temperature alright. It stops around 9 in the morning again.