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Old 09-22-2022, 01:23 AM   #1
mellpelc
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co 2 sensor alarm

I have a 2022 376fl 400 solar package. My co 2 sensor alarm. Goes off at random times. I bought the Camper at end of May. The sensor or battery can't be bad can it? Any of you guys know what it might be? Says battery needs replacing by 2027
 
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Old 09-22-2022, 08:38 AM   #2
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Originally Posted by mellpelc View Post
I have a 2022 376fl 400 solar package. My co 2 sensor alarm. Goes off at random times. I bought the Camper at end of May. The sensor or battery can't be bad can it? Any of you guys know what it might be? Says battery needs replacing by 2027

Welcome to the forums!


Mine did that on my last trailer but it was hard wired. I had to cut the wire in the middle of the night. Turns out it was too close to the dog bed and well....dog farts


But I didn't know Keystone was using battery CO2 sensors. The easiest fix is to replace it. $20 at Home Depot. If it continues start searching for the source. Where exactly is it locate? CO2 is no joke.


I just did the 360 on your trailer and I don't even see the sensor. It's typically floor level in the kitchen.
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Old 09-22-2022, 08:54 AM   #3
twindman
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My floor level sensor is for propane, not CO2. Also, I searched and the article said a sensor should be 5 feet above the floor (my guess is that is where our nose is!!).
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Old 09-22-2022, 09:08 AM   #4
Carl n Susan
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I think the OP is referring to a Carbon Monoxide (CO) detector and not a Carbon Dioxide (CO2) detector. The CO detector is usually battery powered and mounted on the wall in the upper level bedroom or front living room. Could it be a flaky 9V battery problem?
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Old 09-22-2022, 12:51 PM   #5
mellpelc
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my sensor is hard wired floor level black about 4 inches off ground. between kitchen and 2nd bathroom wall.
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Old 09-22-2022, 01:09 PM   #6
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my sensor is hard wired floor level black about 4 inches off ground. between kitchen and 2nd bathroom wall.
In that case, you have a Propane Detector, not a CO (or CO2) one. They are 12V powered from the coach battery and have a 5 year (or so) lifespan. They have a specific alert sequence when then they reach End Of Life (EOL). An intermittent alert is more likely due to detecting propane, hairspray, farts, or other triggering smell.
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Old 09-22-2022, 02:10 PM   #7
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Our CO censor is plug in with a 9 volt battery. It has a digital read out so I know exactly how high the CO is. We keep it in the bedroom just over the generator and by window. Never had a problem but you can’t be too safe or you might not wake up.
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Old 09-22-2022, 07:33 PM   #8
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Need to replace sensor my 2021 did the same they replaced under warranty
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Old 09-22-2022, 09:06 PM   #9
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Propane detectors are always placed near the floor because propane is heavier than air. CO detectors should be placed up higher because CO is slightly lighter than air. I'm not sure why they make combination CO/propane detectors, but I'm sure money is the reason.
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Old 09-23-2022, 01:26 PM   #10
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Ours also failed in first year with same symptom. Dealer processed it as a warranty and I installed the new one.
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Old 09-23-2022, 03:30 PM   #11
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They do make a combo detector, mine is a combo and is mounted about 12 off the floor in the main area.

https://www.montanaowners.com/forums...1&d=1663968583
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Old 09-28-2022, 01:26 PM   #12
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CO monitor

It is not a CO2 sensor, it is a CO sensor referred to as a Carbon Monoxide detector picking up gas in there unit like propane,
The monitor is hardwired to the battery and will drain it even when used.
I have a battery disconnect that cuts battery power to unit, so no drain.
Get rid of your detector and buy a gas detector from Home Depot that has a 10 year battery installed.
Hope this helps.
Picture of my battery disconnect from auto parts store.
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Old 09-28-2022, 02:01 PM   #13
rohrmann
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Originally Posted by Wheelhouse View Post
It is not a CO2 sensor, it is a CO sensor referred to as a Carbon Monoxide detector picking up gas in there unit like propane,
The monitor is hardwired to the battery and will drain it even when used.
I have a battery disconnect that cuts battery power to unit, so no drain.
Get rid of your detector and buy a gas detector from Home Depot that has a 10 year battery installed.
Hope this helps.
Picture of my battery disconnect from auto parts store.
Happy Trails

Not all rigs have hardwired CO detectors or even hardwired smoke detectors. The only detector in our rig that is hardwired is the propane detector. Our CO and smoke detectors are both battery powered, in fact the last smoke detector I installed has a 10 year battery in it, and the last CO detector has I think a 7 year battery in it. When the failure alarm goes off, you just replace the units with new ones. Also, CO and propane are totally different gases, and a CO detector should only be replaced with another CO detector.
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Old 09-28-2022, 02:27 PM   #14
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What CO monitor do you have? Mine is a Safe-T-Alert 45-741 CO/Propane alarm. I would download the owners manual and see what they they say about troubleshooting. Possible alarm causes discussed in the links below and include monitor malfunction, end of life, dust/dirt over cover, assuming you do not have a CO due to unburned gas.

https://www.theoutdoorhacker.com/why...0be%20replaced
https://thecampingadvisor.com/rv-car...eps-going-off/
https://beginrv.com/rv-carbon-monoxide-detector/
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Old 09-28-2022, 09:31 PM   #15
Wheelhouse
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Trailer monitor I had was a 5 year hardwired with a green lite under the oven door to pick up any unburnt propane gas as mentioned by Rohrmann earlier.
The trailer monitor will drain the battery.
If it starts to beep, it is time to replace it.
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