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Old 02-09-2016, 07:02 PM   #11
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Originally Posted by riverrat958 View Post
have actually replaced new ones in brand new units
I'm sure it happens. The problem with a lot of the CO alarm manufacturers is they do not provide a means to activate the sensor after purchase, so it is activated at the factory.

CO sensor activation happens when the electro/chemical sensing element is exposed to the atmosphere. If it sits on a shelf for years, or in a RV sitting on the lot and is active, the "timer" is already counting down.

Always check the "replace by" date before you buy one or buy the type that can be field activated (usually pulling an activation tab).

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Old 02-09-2016, 07:04 PM   #12
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I emailed the mfg company and never got a reply.
Alarm has a mfg date of 7/15.
Even went off with shore power.
No problems with battery unit that replaced it.

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Old 02-19-2016, 06:55 PM   #13
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Originally Posted by Major View Post
Just a FYI, but ALL CO alarms have a finite life span, usually 5 years. They all "die" over time and many will chirp continuously when the life has expired. Check the "replace by" date on the unit. I should be on there somewhere.

7 years for CO or CO/Smoke combo units, 10 years for smoke; per NFPA standard...
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Old 02-27-2016, 04:48 PM   #14
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Just replaced mine. The old one was three years old and on the last trip of 2015, it chirped like crazy. As someone else did, I disconnected it, took it outside and connected it to my truck battery, placed it on the ground and within minutes it started to chirp. There was NO replace date on the unit, but per the manufacturer MTI, there is a production date and the unit should last five years. Mine didn't; they didn't seem to care.

Due to the size, I ordered another one from Amazon. It had a large red stamped date of AUG XX 2015 on the back. So we'll see if it lasts till 2020.
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Old 03-08-2016, 12:12 PM   #15
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I missed that you have 2016 rv unit, duh-moment. Your dealer should fix or replace.this. Try digital battery unit to confirm malfunction if they don't.

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