When they don't feel like making noise and at night.
Lubricate.
Your chirping smoke alarm is making noise because it is indicating a low battery or a malfunction. To stop the noise, you can replace the battery or reset the alarm according to the manufacturer's instructions.
making
Unplug it.
Bleeding the air from them usually helps.
either replace them or add motor honey to go for a longer perion without noise....
Racket
u tell me
If you get a noise complaint letter then it is best that you stop what ever is making the excessive noise. If the noise is violating the noise pollution law, then you have to stop asap before the police get involved and you get fined. If it is not breaking the law but it is annoying the community then it is best to stop anyway or you will end up with other issues such as neighbors damaging your property when you are not at home.
you cant. the sound is probably either a disk spinning, or the fan running so the machine doesnt melt. if its not making noise, its probably off or broken.
Your chirping smoke detector is likely making noise because its battery is low or needs to be replaced. To stop the chirping noise, you can try replacing the battery with a new one. If the issue persists after replacing the battery, it may be a sign that the smoke detector itself needs to be replaced.
You can stop it by parking in a garage or carport