Why does my smoke alarm make weird noises?

Question

I live in student halls and quite frequently (probably once a day/every other day) my smoke alarm will make strange noises. It will usually be a hissing noise (like the sound of air escaping from something) followed by a faint click. Sometimes it will be one of those noises on their own.

Is this something worth calling maintenance about or is it okay just to ignore?

Answer 1

Smoke detectors are intended to make a chirping noise once the battery needs changing. ... This usually occurs in electrical powered smoke alarms with a battery backup. When this happens, the way to stop the chirping noise is to reset the smoke alarm to manually clear the error from the processor.

Source(s): https://vapedubai.org/

Answer 2

If it is hard wired, which is most likely, it is a built in automatic performance check.

Answer 3

Take it down and replace the battery.

Answer 4

It is an automatic, battery operated room spray so the place smells nice.

It would be set on a timer to go off regularly.

Answer 5

That's not a smoke alarm that's a room deodorizer they look like smoke alarms. But they have a little motor inside of it that once in awhile it pushes a button mechanically indispenses some deodorizing agent that's the hissing sound that you're hearing and the click from the mechanical arm

Answer 6

Could be that it needs a new battery.