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04-19-2016, 11:02 PM
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#1
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Junior Member
Join Date: Sep 2015
Posts: 12
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Low voltage - CO detector error
Bought a pop-up truck camper last year and have been having an issue with the CO detector issuing a low voltage warning. The warning usually starts on the second day of a trip (no driving on the second day so no recharging) and not being plugged in at campsite. The confusing thing is that the lights are still strong and can raise/lower roof (which runs off the battery) so a bit suspicious of how accurate the reading is. The battery is less than one year old and this never happens when plugged in at a campsite.
How "low" would the voltage be for this error...I was expecting to only hear when battery was almost dead but that doesn't seem to be happening? Could the low voltage sensor be too sensitive or not working properly?
Any advice or suggestion appreciated!
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04-21-2016, 12:53 PM
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#2
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Senior Member
Join Date: May 2013
Posts: 599
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Is your CO 12v? Or are you talking about your propane detector? By the floor?
I would look at specs-manufacturers website, and swap batteries for a day or two. See what happens.
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04-21-2016, 07:43 PM
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#3
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Junior Member
Join Date: Sep 2015
Posts: 12
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It is a wired CO/LP detector and close to the floor. No batteries and only a positive and negative connection wiring from what I can see in the manual. So my only option is to disconnect the entire unit but that means no CO detector.
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04-21-2016, 08:33 PM
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#4
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Senior Member
Join Date: May 2013
Posts: 599
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Is your fridge close to it? Or your water heater? Any of these appliances running on LP when this happens? Whats the voltage reading of the battery when this happens? I would swap batteries first, see what happens. Any other CO detectors going off?
Might want to purchase a small portable LP detector/sniffer.
Also see if same thing happens when you are not running any other stuff like lights/fans etc, to eliminate current draw on battery.
There was a thread here not too long ago with a similar scenario, and water heater on starup was causing it.
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04-22-2016, 07:18 AM
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#5
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Junior Member
Join Date: Sep 2015
Posts: 12
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The fridge is close by and running on LP but the alarm pattern of beeps and lights is definitely not warning me of a gas issue...the manual indicates the alarm is either a fault or low voltage as the cause.
You are right that after the second day or so (battery drained somewhat), a large load (heater) is usually what triggers the alarm even though last week it went off in the middle of the night when nothing was using the battery.
I am fairly certain it is a low voltage issue but am really wondering how "low" the trigger would be for the alarm as the other appliances all work even after the alarm has gone off so I don't think the battery is almost dead. If I have lots of battery life left even with the alarm sounding, I would probably then just disconnect the alarm and buy a backup CO alarm.
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04-22-2016, 07:57 AM
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#6
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Site Team
Join Date: Oct 2014
Posts: 15,300
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The next thing I would do is actually measure the battery voltage. The CO detector has a built in safety alarm for low voltage. It is set a a predefined voltage. That does not mean that other non-voltage critical things ( lights etc) will not operate. It is possible that when some appliance comes on it draws the battery voltage down below the CO alarm threshold on that line ( taking into account the line drop under load) and sets off the alarm. Get an accurate volt meter and measure the voltage at the CO detector when the alarm goes off. Here is a chart of battery levels vs voltage.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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04-22-2016, 11:39 AM
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#7
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Junior Member
Join Date: Mar 2016
Posts: 3
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CO Detector/Low Voltage Issue
We had our maiden voyage with our PUP last weekend and on our second night the CO alarm started going off in the middle of the night. We were dry camping and it had been overcast during the day so our solar panel didn't do much good. The voltage reading on the battery was roughly 12.4- I didn't think it would be going off at such a reading but it was. Our lights were still working fine and such.
We hooked it up to the TV and charged for a bit and we were good to go until we could get some solar power the next day. Now I know. I was all over measuring the voltage the remainder of the trip- didn't want another long night!
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04-22-2016, 12:13 PM
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#8
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Junior Member
Join Date: Jun 2013
Location: Jacksonville, Fl
Posts: 5
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Low voltage CO2 detector
The co2 detector in our Grey Wolf 25RB went out after one year. When I removed it I found that it was really over 3 years old. They do have a life span. It also gave us an alarm every time my wife used her hair spray.
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04-22-2016, 01:04 PM
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#9
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Site Team
Join Date: Oct 2014
Posts: 15,300
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The life span mainly effects the sensitivity of the detector although some models will continually beep once the lifespan is exceeded by some amount. Most all spray products will set off the alarm as the detector will sense the presence of the propellant. Hair spray, lysol or pressurized cleaning products will set it off. To reduce costs RV manufacturers buy items like CO/Propane detectors and tires in volume so it is not unlikely to see new units with components that are a year or more old when installed.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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04-23-2016, 02:10 PM
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#10
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Senior Member
Join Date: May 2012
Posts: 869
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Don't forget that when the furnace comes on, the blower motor is a significant load on the battery and its output voltage will drop. In my 2011 Georgetown 327DS with its two 12V dual purpose lead acid batteries in a non-enclosed (cold) basement compartment, a full night's use of the furnace was enough to drop the battery voltage, under load, low enough to activate the detector's low voltage alarm. Low voltage doesn't effect my lights because they're all LEDs.
Phil
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04-29-2016, 10:03 PM
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#11
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Senior Member
Join Date: Mar 2014
Posts: 939
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Mine starts chirping randomly for no reason that I can see. I'm going to shoot it if it ever goes off when I'm sleeping.
__________________
Rockwood 2104S, 2014 Ram 2500 Diesel.
USMC 68 -70
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04-30-2016, 08:20 AM
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#12
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Senior Member
Join Date: Jan 2015
Location: Englewood FL
Posts: 2,797
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I have had similar issues on my old Bounder. However, looking at the specs for some of the CO/LP detectors, they are really, really tolerant of low voltages. In fact the Safe-T-Alert model can take voltages down to 7 volts and even operate for very short periods down to 1 volt! Can't imagine a 12 volt system getting to 7 volts without everything else in the RV not functioning.
They are sensitive, but I wouldn't ignore them with the furnace running. They may be detecting dust in the system when first started and they also will go into chirp if older than 5 years!
Don't freak, but don't just chalk it up to low voltage either.
__________________
2015 335DS
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05-05-2016, 03:38 PM
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#13
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Senior Member
Join Date: May 2013
Posts: 599
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Quote:
Originally Posted by Too Tall
Mine starts chirping randomly for no reason that I can see. I'm going to shoot it if it ever goes off when I'm sleeping.
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If it goes off while you're sleeping, run
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05-05-2016, 03:43 PM
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#14
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Senior Member
Join Date: Mar 2014
Posts: 939
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Quote:
Originally Posted by Kuba
If it goes off while you're sleeping, run
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Ha, the darn thing has cried wolf so many times, I don't trust it any more. I come to ignore it which could get me in trouble one day.
__________________
Rockwood 2104S, 2014 Ram 2500 Diesel.
USMC 68 -70
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06-06-2016, 08:01 AM
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#15
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Member
Join Date: Apr 2016
Posts: 40
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Get a second detector! No chances on CO.
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06-07-2016, 09:58 AM
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#16
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Senior Member
Join Date: Mar 2014
Posts: 939
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I had to disconnect it the other night I will troubleshoot it again but it keeps showing butane alarm. It was either that or not sleep. It's located very close to the refrigerator butane flame. maybe it's picking it up from there I don't know but I'm not dead yet.
__________________
Rockwood 2104S, 2014 Ram 2500 Diesel.
USMC 68 -70
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06-07-2016, 10:29 AM
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#17
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Senior Member
Join Date: Sep 2010
Posts: 2,219
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Sounds like you need a new one.
2010 F250 5.4L 3.73
2011 Flagstaff 831FKBSS
Equal-i-zer 4pt 12K
__________________
2011 Flagstaff 831FKBSS
2010 F250 4X4 5.4L 3.73 LS
EQUALIZER E4 1200/12000
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06-07-2016, 10:04 PM
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#18
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Senior Member
Join Date: Mar 2014
Posts: 939
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Yea, probably need a new one or none at all. I went for 40 years in my past RV's without this nuisance.
__________________
Rockwood 2104S, 2014 Ram 2500 Diesel.
USMC 68 -70
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06-08-2016, 08:39 AM
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#19
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Senior Member
Join Date: Sep 2010
Posts: 2,219
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Mine was only 3 1/2 years old when it crapped out. I had to cut the wires until I could replace it. Not cheap either, think it was like 95 bucks.
2010 F250 5.4L 3.73
2011 Flagstaff 831FKBSS
Equal-i-zer 4pt 12K
__________________
2011 Flagstaff 831FKBSS
2010 F250 4X4 5.4L 3.73 LS
EQUALIZER E4 1200/12000
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06-08-2016, 01:10 PM
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#20
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Senior Member
Join Date: Sep 2015
Posts: 860
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They have a limited life span I found out, I've had to replace mine at home twice.
Brian
__________________
Brian
2015 Forester 2801QS GTS
TOAD-Hobie Mirage Pro Angler 14 kayak and Yamaha Zuma 50cc scooter on a custom trailer.
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