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02-04-2025, 04:24 PM
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#1
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1 Rivet Member 
2023 27' Flying Cloud
Santa Fe
, New Mexico
Join Date: Aug 2015
Posts: 9
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CO2/propane Alarm
My 2023 27’ FB Flying Cloud is winterized and sitting in my driveway with power connected. For the last two days, the CO2/Propane Alarm has shown red with the beeping alarm sound. However, the propane tanks are shut off and I don’t see how anything can cause the alarm. I can push the test button and stop the beeping and even get the alarm to show green. But after some time, it turns to red and starting beeping again. Does anyone know why this is happening? Tom Larson
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02-04-2025, 05:17 PM
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#2
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Rivet Master 
2021 Interstate 24GL
, California
Join Date: Oct 2023
Posts: 544
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How the power, confirm there 12/13 volts in the system? I don’t have a trailer, but I think I’ve seen batteries as a possible in previous posts come up.
__________________
2021 AI 24GL 4wd, “maRVel”
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02-04-2025, 05:29 PM
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#3
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Lost in America
2015 27' FB International
2006 25' Safari FB SE
2004 19' International CCD
Santa Fe
, New Mexico
Join Date: Feb 2007
Posts: 2,177
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Unplug from power for a couple of hours and then check the battery charge. If low, the propane alarm will sound.
__________________
This is the strangest life I've ever known - J. Morrison
2015 Airstream International Serenity 27FB
2017 Chevy Silverado 2500HD Duramax Diesel
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02-05-2025, 07:21 AM
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#4
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"Cloudsplitter"
2003 25' Classic
Houstatlantavegas
, Malebolgia
Join Date: Jun 2007
Posts: 20,216
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Just me...
Charge batteries, engage battery disconnect & LP alarm switches, (self-installed) turn off & disconnect LP tanks.
No reason for any in storage. 
Bob
🇺🇸
__________________
I’m done with ‘adulting’…Let’s go find Bigfoot.
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02-05-2025, 07:28 AM
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#5
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Journeyman
2016 25' International
Amherst
, Massachusetts
Join Date: Apr 2016
Posts: 998
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Is the detector out of date? Might be time to replace...
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02-06-2025, 02:49 PM
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#6
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Rivet Master
1988 32' Excella
Robbinsville
, New Jersey
Join Date: May 2012
Posts: 3,739
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Quote:
Originally Posted by thiel
Is the detector out of date? Might be time to replace...
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I would doubt that on a 2023, but you never know until you check.
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02-06-2025, 03:48 PM
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#7
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Rivet Master
2023 25' Globetrotter
2021 16' Bambi
Forest Lake
, Minnesota
Join Date: Mar 2021
Posts: 1,953
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Since we have the same year and I'd guess the same CO detector, I was wondering and dug out the manual. Attached are the alarm states. It looks like there are two LEDs and different chirps to consider.
__________________
2023 Globetrotter 25FBT "Curly"
2017 Audi Q7 3.0T
WBCCI 6343
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02-06-2025, 05:09 PM
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#8
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PlasticThingsHaveNoSoul
Currently Looking...
Casa Grande
, Arizona
Join Date: Sep 2018
Posts: 87
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Remove power to alarm.
Use can of air duster to gently blow out inside of alarm.
Reconnect power to alarm.
It worked for our 2021 Classic back in 2022.
Good luck.
Regards,
Ron
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02-09-2025, 10:58 AM
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#9
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1 Rivet Member
2023 27' Flying Cloud
Santa Fe
, New Mexico
Join Date: Aug 2015
Posts: 9
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Fixed the CO Alarm
Thank you, rhensley. Using the air duster to clean the CO alarm fixed the problem. The RV is in NM, where dust has been blowing around all winter with no precipitation, so the alarm may need routine cleaning. Thanks for everyone’s suggestions.
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02-09-2025, 11:17 AM
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#10
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Rivet Master
2023 25' Globetrotter
2021 16' Bambi
Forest Lake
, Minnesota
Join Date: Mar 2021
Posts: 1,953
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Quote:
Originally Posted by Tom Larson
Thank you, rhensley. Using the air duster to clean the CO alarm fixed the problem. The RV is in NM, where dust has been blowing around all winter with no precipitation, so the alarm may need routine cleaning. Thanks for everyone’s suggestions.
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Thanks, good to know if ours ever goes off without provocation.
__________________
2023 Globetrotter 25FBT "Curly"
2017 Audi Q7 3.0T
WBCCI 6343
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02-09-2025, 11:32 AM
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#11
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3 Rivet Member 
2020 16' Basecamp
Louisville
, Kentucky
Join Date: Oct 2019
Posts: 214
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I’m glad it responded to a good dusting. My first thought was that ethanol evaporating from the antifreeze in the toilet bowl.
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