Smoke Detector Troubleshooting How Do I Get My Smoke Detector To Stop Chirping When It's Hard-wired To The Electricity?

How do I get my smoke detector to stop chirping when it's hard-wired to the electricity? - smoke detector troubleshooting

My smoke alarm began chirping at 4.27 clock today. Do not you do? So I said a lot of research here, and everyone to replace the batteries in my smoke detectors, but can not open the detector. Moreover, it is difficult to wire on the roof, except when I took the smoke detector on the ceiling, it looks as if they do not really leaving, I do not know what to do now.