Hello everybody, New to this forum here. I have a question that's been baffling me for quite sometime. A few months ago, a couple of smoke detectors in my house stopped working at different times; one downstairs and one upstairs. They started chirping and I replaced the 9V batteries. However...

I bought new hard wired smoke/CO detectors to replace my existing very old ones yesterday. When I turned off all of the breakers in the house as well as a smaller box with breakers outside of the house, I noticed that the smoke alarms were still showing lights as if they still had power. I...

I'm replacing hardwired smoke detectors in my house and there are only black in red wires in the electrical boxes, no white wire at all. There are actually 2 black and 2 red wires. the smoke detector has of course a black, white, and red wires. I understand that the black is hot and that the...

I'm planning on putting in some hard-wired smoke detectors in my house. I've got all the materials... I'm just trying to fit the wiring into my schedule... well, actually, I'm waiting for the weather to cool off a little before I climb up into my attic, to be honest. :) My question is this...

Here is a weird one that i can't figure out! I bought my house a few years ago and never really paid attention to the smoke detectors. finally they all started dying so i figured i would change all the batteries at once (yes i know i should change them yearly). After I plugged them all back in...

I am replacing my hard wired smoke detector. When i removed the old one it revealed that the 3 wires (white, black & yellow) were just shoved through a hole in the wall about the size of a dime and are connected outside with caps to the old smoke alarm harness. There is not enough room to push...

I have two First Alert/BRK smoke detectors in my house. Model #9120 Dual ionization, hard wired in the basement and on the first floor near kitchen (kind of centrally located on the first floor). These two are wired together and very loud. Then I have a Model # SA710 photo electric, battery...