Smoke alarms with a low battery or fault will emit a short intermittent high-pitched warning sound.
If the smoke alarm is made by FireAngel, a low battery warning can be silenced for eight hours by pressing the test button. The smoke alarm will still detect smoke during this time. However, it is recommended that the alarm is replaced immediately, and certainly within seven days, as the alarm may have insufficient power to warn of a real fire situation after this time.
If the alarm cannot be silenced, it is faulty and should be immediately replaced.
If the faulty smoke alarm is a FireAngel ST-622 model originally provided by Buckinghamshire Fire & Rescue Service and you are physically able to exchange the device, a replacement smoke alarm can be requested from FireAngel by calling the technical support line on 0800 1412561. A replacement alarm will be posted to you.
If you are not physically able to exchange a beeping smoke alarm, or your faulty alarm is not a FireAngel ST-622, request a Home Fire Safety Visit to replace the alarm, review fire precautions within your home and receive additional advice and guidance.