Both my alarms go off randomly. Even when its in my driveway with everything off and the windows and doors open. It seems strange that both will, not at the same time, go off at any time. Sometimes after 30 minutes, others at 5-10 hours. Always seems to go off when I sleeping at 3 AM. I hate turning them off, but I need the sleep. What would be causing this? I have the propane off and no one in the trailer.
You don't say how old your rig is. I had to replace my propane alarm when it was 4 years old. I have never seen any life expectancy figures on them. I have had some luck with touchy smoke alarms by vacuum cleaning them, but after a while you just have to replace them.
I have had the same thing happen to me on ocassion, it is always at three in the morning when the alarm goes off. If I run the engine and charge up the batterys the CO2 sensor returns to normal. I think the problem is low battery voltage. The sensor is supposed to close the gas valve and make a warning sound when the voltage drops to 101/2 volts. Test the sensor with a propane lighter, just open the lighter valve and let out some gas near the sensor. If the sensor is ok the warning will sound. This only happens to me after I have been parked for 7 to 8 days while plugged into 110 volts/ 30 amps.
About a week, ago, when connected to shorepower, our Propane Detector sounded alarm. The Wife had an open box of Bounce, fabric softener sheets, by clothes dryer. I moved them away, alarm didn't go off, again. I think, many strong smells will set off these detectors.
By the way, CO2 is Carbon Dioxide. CO is Carbon Monoxide, (POISON GAS). Take Care. Jack...
1989 Pace Arrow 37', Ford 460
Take Care.........Drive Safely...........Grizz Jack..........Happy fishin'.....
My 5er is a 93 wilderness. It will go off on shore or bat power. I know my bats always are fully charged. I would have to assume they are both from 1993. The propane alarm is not one that shuts off the gas flow. It’s a simple 2-wire gismo. I doubt it’s the glue etc since its 9 years old. And it’s not the bats. I guess it could be age, but both going south at the same time? I guess I'll replace the cheaper one first to see if it stops.