I live in a flat in the UK. The flat is about 6 years old, and I moved in 4 years ago.
The flat has a built in smoke-detector, and over the past few days, it has started 'going off' for about 10 seconds. This is very loud beep, not just a 'chirp' - that same noise you get if you press the 'test' button. This has happened twice in the last 4 days (while I've been present, at least).
Searching online has suggested I might need to replace the battery. However, I can't see any way to remove the casing from the ceiling. I'm somewhat hesitant to start jamming a screwdriver in, or pulling anything too hard.
My questions are therefore:
- Does this beeping likely mean the battery needs replacing?
- How can I remove the casing in order to replace the battery?
(Below, three different sides of the alarm)