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noe-place's avatar
noe-place
Explorer
Aug 11, 2013

AC and Carbon Monoxide Alarm??

A couple of days ago I asked for you folks to advise me on a propane alarm that had activated in our C and was advised to replace it due to age. Here's a new one that happened this afternoon. DW was working in the MH parked inside our garage with the 14' tall door OPEN. She closed all the windows/door to the MH and turned on the roof AC and after about an hour she said the carbon monoxide alarm activated. I put a new battery in this past May. Explanation?
  • Local place can't get the replacements I need so I called Winnebago parts in Iowa and they shipped them to me today.
  • Thanks again for the advice. I checked at my local rv service center today and the propane detector for my RV has been discontinued so it looks like I'm going to have a problem finding one that fits the opening installed at the factory. Called Winnnebagoparts today and was told they'll check and call me back tomorrow so we'll see. Guess I'll get the smoke/CO detector since it covers both hazards and maybe even one for each end of the rv since brackets are already mounted on the ceiling.
  • If you do this,What is needed is a dual chamber detector that will detect CO and smoke from a slow smoldering fire such as may start in a R/V because of electrical fires and fast burning smokeless fires.

    After a lot of research.

    This is what I found.
    A Kidde KN-COSM-XTR-B
    That seemed to be best suited for this kind of application.

    Like This

    They now can be bought at Home Depot, also At Amazon.

    Amazon

    I suggest you read all the info and make your decision on this but I replaced the ones in my Class C with this one.They are rated for 7 years
    and most are only rated for 5,If your RV is older than 5 years old and they haven't been changed they are most likely no good. Mine needed to be replaced so this was a good deal for me.

    Just a reminder,a first line of defense is always the best. Check those smoke detectors and replace them if needed,all have a date on them and how long they are good for. If they don't, toss them.

    While it is important to know all of your emergency exits it is also
    important to be warned early,especially if you are older or have mobility issues or have small children.

    I hope that this helps,It is better to be safe than sorry and it is a small price to pay for security and peace of mind.
  • The detectors are both about 9 yrs old as is the RV. The RV was inside the garage but no genny or engine was running!! Huge garage door 14' was OPEN all the way. House batteries are three years old and good. She was NOT cleaning but changing the sheets. I've already decided to replace the propane detector as it activated the other day with everything turned off. I guess I'll simply replace the other detectors as well as it appears they're all dying at the same time. Thanks for the advice.
  • On our previous motorhome, we had a problem with the CO detector going off when the battery charger was set up incorrectly for the wrong type batteries. It was literally boiling the batteries. Once the charger was programmed for the correct battery type (new batteries needed too), the CO detector problem went away.
  • After a 2 AM wake up call, then a soapy water troubleshooting afternoon, I installed a simple on/off switch in mine. Mine turned out to be a low voltage problem so when dry camping if it goes off I can disable it if the nearby new volt meter shows the problem to be voltage related.
  • Propane detectors do have a limited life span and they get more sensitive as they age. A dog fart will set them into panic mode. I had to replace mine when it objected to the quality of wine I was drinking.
  • I see Kidde has a new model.out that has a 10 year battery and a digital readout which will give you a reading on amount of CO. They are about $50. I see one in my future. It may be something you would like to consider.
  • Might be a new battery last May BUT is it charged/being charged....holding a charge??

    Low battery voltage will set them off

    How is your converter working (or inverter/charger)?

    How old is the CO Alarm?

    Was the DW cleaning?
  • Was the RV running or was the generator turned on?

    If so the A/C may be pulling in the fumes thru any vents or any place there may be gaps. After all they aren't airtight.