Carbon monoxide/ propane detector coming on during the night

[mtnlvr]

My detector is hard wired into my Solera- no batteries. My batteries were fully charged & also have a solar panel. My propane tank was full and I wasn't running the (propane) generator or furnace during the night. So, I can't figure it out why it went off dry camping a couple of nights ago. It was about 40 degrees at that time. I just turned off the propane & went back to bed. I've plugged into hookups the last two nights. I've been calling around the Ashland, OR area and everyone either doesn't return my call or told me they can get me in, in Nov! Anyone have any ideas? Thanks.

[Timex]

Here is some points to consider the causes of the "false" alarms.


A weak or dying house battery.
Out gassing from the house battery.
An aerosol spray.
Out gassing from upholstery during a heating of the interior.
An outdated sensor. Most have a replace by or a manufacture date stamped on the back.
I've replaced my sensor because it kept alarming at 2:00 am for no reason.


Or it could be none of the above.