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Old 09-26-2020, 07:58 AM   #1
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Question Carbon Monoxide Alarm

We're packing for a week long trip to Colorado and the carbon monoxide alarm keeps going off. The 5er has been sitting closed up for a month in the Phoenix heat and has a funky smell inside, maybe black tank sewer gas. It is plugged in to shore power, refrigerator is on electric, propane tanks are off. I saw that the existing detector was very old and replaced it with a new one. With no heater, refrigerator or stove being used, could the alarm be triggered from the black tank gas?
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Old 09-26-2020, 08:02 AM   #2
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Yes. Methane gas will trigger the alarm.

Happy Glamping.
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
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Old 09-26-2020, 09:00 AM   #3
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I've heard that can happen. I would take it to the nearest dump station and give it a good cleaning!
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Old 09-26-2020, 09:06 AM   #4
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The alarm on mine started "beeping" so I replaced it with a new one but it also "beeped" even though the shore power was connected. I traced the problem to the 12v battery voltage that didn't take a charge so bought a new battery that solved the "beeping".
Out of curiosity I tested the one I removed to the new battery and it didn't sound the alarm. Now I have an extra one. LOL
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Old 09-26-2020, 03:36 PM   #5
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Methane will quickly trigger a propane alarm and according to the manufacturers it can set off the CO alarm if there is enough of it.
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Old 09-26-2020, 03:38 PM   #6
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I had one that was beeping. It was old so I bought a new one. It beeped also. Sent it in to safe-t-alert and they sent a new one. It has been good for a few years
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Old 09-27-2020, 08:39 AM   #7
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I have issues with mine going off if battery voltage is low.
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