If you havebattery-poweredsmoke alarms, the change is easy to make — just remove the old one and put a new one in its place. Hardwired smoke alarms require a bit more effort because they are wired into the home's electrical circuitry, so the job might call for a modicum of electrica...
For battery-operated smoke detectors, replace the batteries and try again. If it still doesn’t work, it may be time to replace the detector. If your detector is hardwired and the alarm doesn’t sound properly, call an electrician to check the wiring. If you can’t reach your alarm to...