has 3 CO detectors that came factory delivered in 2006. One of them starts chirping every day. I press the reset button, and it is fine until the next day. I know it's not a CO problem because I haven't even been running the engine
. No one around me has either, nor has anyone been running generators or anything like that. I come back to my boat
at the marina the next day and it's going off again. Of course, the first thought is that the battery
is low but these don't use their own batteries
. They are hard wired into the boat and there is no switch that controls them, and no way to turn them off other than disconnecting the main battery
bank. And my 12 volt batteries
are fine, I checked them. In fact, I recently replaced half of them.
This is just annoying, but the other day another detector was in alarm
mode when I arrived. It wouldn't stop alarming no matter what I did, so finally had to resort to cutting the wire, then re-joining it. And it was back to normal. They are Costar model detectors exactly like this: https://www.jmac.com/Quantum_Group_1...-12-24SIR.htm=
I have opened them up, cleaned out any dust, but still the problem persists. I could buy separate battery powered ones and use those instead but since the internal wiring
already exists, I would rather use what I have.
Any suggestions? And do CO detectors normally lose their ability over time?