I have three CO sensors that are over 10 years old and two are beeping to let me know they have gone bad. They are hard-wired into a Concord 4 Series box. The previous owners had a robust alarm system that we are not using that is also wired into the box.
When I had an electrician here for something unrelated, I asked if he could replace and he noted they should not be high up on the wall as they are now. He recommended to instead just get the kind you plug into an outlet. This is fine, but he also said he could not help disconnect them from the Concord series 4 box and to call an alarm company. I was about to just cut all power to this box but realized that would also disable my smoke detectors.
Does anyone know how I can figure out which of these wires are for CO2 sensors? If not, I plan to just disconnect the wires going into the actual CO detectors and use wire nuts to terminate them.
