Originally Posted by f1100turbo
Well I'm no genius but.....
Is it my imagination or is your co detector off? "Appears the green light is off"
I've seen someone before switch there co detector before as there hardwired and will contribute to battery drain when not hooked to shore power.
Just a possibility. ...
Thanks, Turbs. Switch still a mystery to me, but your observation about my lack of a lit green light led me to discover that my LP detector needs replacing. (@ 5 year life, so THEY say'; maker now out of business but similar size can be had on Amazon) Once that comes in, the mystery switch's utility may reveal itself. Thanks for your very helpful observation. Patty