A device is beeping: what to do
A periodic beep is almost never an alarm — it's a fault signal: the device is telling you it needs attention. Below is how to work out what exactly is beeping and what you can do yourself.
Emergency
If a full alarm siren is sounding and there are signs of fire — don't troubleshoot the device: call 112 and leave the building.
01Find the source of the beep
It could be:
- a standalone smoke detector on the ceiling
- a fire alarm panel
- a security alarm keypad
- a backup power unit (UPS)
Follow the sound — the beep may come at short intervals or be continuous.
02Standalone smoke detector (round, on the ceiling)
A single beep about once a minute — the battery is running low.
We recommend contacting your property manager or maintenance company.
After replacement the detector may beep once or blink — that's normal.
03Fire alarm panel (ATS)
A beep plus a yellow indicator (Fault) = a fault: a drained backup battery, a damaged cable, a dirty detector.
What you can do:
- the Silence button turns the sound off temporarily — the cause doesn't go away.
- Contact your property manager or maintenance company.
- Make an entry in the maintenance logbook.
- Write down what the display or indicators show — it speeds up the repair.
What not to do:
- don't power the panel off and don't try to fix the fault yourself if you don't know the cause.
04Security alarm keypad
A beeping keypad most often means
- a drained backup battery after a power cut
- lost communication
- or an open zone.
Check what the display says and write the error down.
Contact your property manager or maintenance company.
05UPS / power supply
Beeping after a power cut — it's running on battery, that's normal.
Beeping constantly while mains power is on — the battery is worn out and needs replacing.
If the beeping won't stop
If the beep didn't go away or keeps coming back, the cause runs deeper: a battery, a loop or a detector needs replacing. Tell us what's beeping and what's lit on the panel — we'll come and fix it.