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Old 03-03-2013, 08:54 PM   #1
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LP Detector Useful Life

I bought a 2002 Newmar Class A and was wondering was is the useful life of the LP detector. I have an Atwood Protechtor model 2001, which seems to be a pretty common model. My guess is the detector has never been changed. There is also a toggle switch on my control panel that is required to be in the "ON" position to activate the switch. Does the lack of power to the detector extend the life?
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Old 03-03-2013, 09:01 PM   #2
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The LP detector in our coach (see sig.) is original. I really don't know the brand of it. Occasionally I allow gas from a Bic type lighter to escape near it. It always alarms.
As to extending the life by cutting power to it.......I would have to assume that cutting the power when not in use would extend the life. So, if that's easy for you to do then go for it.
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Old 03-03-2013, 09:40 PM   #3
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5 yrs is the life.

Don't take risks with your life. When you are sleeping and you have a gas leak there won't be time to test it with your bic lighter.
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Old 03-03-2013, 09:48 PM   #4
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5 yrs is the life.

Don't take risks with your life. When you are sleeping and you have a gas leak there won't be time to test it with your bic lighter.
You test it periodically to avoid taking risks.........why would a person wait until there's a leak to test it?
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Old 03-04-2013, 04:45 AM   #5
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I agree that 5 years is probably the useful life. Checking the internet, I found an exact replacement for my Atwood Protechtor, model 2001 on eBay for $ 25 + $6 shipping. Amazon had it for $ 88 and I found another one at www.markariosrv.com for $ 48 + shipping. My model is a flush mount. If anyone is looking for an excellent replacement for their CO detectors, check out Quantum Guardian in Ca. You can buy a dual pack for $ 40 with no tax and free shipping. This deal is like buy one, get one free. This CO detector uses a new technology that warrants the detectors against false alarms. While I'm on a roll, check out the Gen-turi exhaust system for your generator. When your RV is parked in close quarters at a campground or at a NASCAR race, the Gen-turi is a MUST have. Amazon has it for $ 106 and I bought an 18" extension for $ 22. Everyone be safe.
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Old 03-04-2013, 04:59 AM   #6
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Some of those LP detectors are wired to a solenoid switch on the LP tank - when in alarm it will shut off the LP automatically. If yours is setup this way make sure your replacement LP detector has this same function, otherwise after replacing it you'll be wondering why you have no LP to your appliances :-)
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Old 03-04-2013, 05:27 AM   #7
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i guess i have a 10 year life on mine, because last year i discovered it was n't even hooked up. i have a tester that i use every spring, and crawl around under the unit looking for any leaks.
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Old 03-04-2013, 06:22 AM   #8
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Quote:
Originally Posted by esfritzi View Post
I bought a 2002 Newmar Class A and was wondering was is the useful life of the LP detector. I have an Atwood Protechtor model 2001, which seems to be a pretty common model. My guess is the detector has never been changed. There is also a toggle switch on my control panel that is required to be in the "ON" position to activate the switch. Does the lack of power to the detector extend the life?
The life of the Atwood Protechtor is stated by the manufacturer as 7 years. You can check an older one to make sure it still works with the gas from an unlit propane torch or butane lighter.

I think the detectors usually fail not by giving no alarm, but by giving false alarms. At least that's the way ours failed. It started giving alarms for no reason - even when the LP tank was turned off. The alarms started getting more frequent until it never shut off.

Since ours was a flush mount, I needed to find a replacement that fit the existing hole. Although the original Protechtor has been replaced by a newer Atwood model, the old version is still available from some sources, but at a high price ($70-$80). I found this one on eBay for only $35. It is the updated model from Atwood. Although the newer one is smaller than the original Protechtor, it comes with an larger adapter plate so it will fit the old, larger hole. It also comes with a second adapter so it can also be used as a surface mount.
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Old 03-04-2013, 08:59 AM   #9
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As an old computer tech, I want to add a thought.
Electronic device life is determined by POH MTBF (power-on-hours, mean-time-between-failures).
I would expect this device to have an MTBF well beyond 100,000 hours, possibly over 1 million hours.

I had a similar device in a 96 MH that performed flawlessly. I traded in 2011. It was 15 years old. It was only powered on when I used the rig. It was stored for about 90% of each year. So, at most, it had 900 POH annually, about 13,500 POH in that 15 years.

So why would it have only a 5 year life expectancy?

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Old 03-04-2013, 10:05 AM   #10
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I just checked with Atwood and they confirmed that 7 years is the stated useful life of their Model 2001 LP detector. For $ 35, why take a chance.
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Old 03-04-2013, 10:21 AM   #11
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I just checked with Atwood and they confirmed that 7 years is the stated useful life of their Model 2001 LP detector. For $ 35, why take a chance.
I agree.

But I had a total POH time of 13,500 over 15 years. And if fulltime over 7 years would be only 60,000. In electronic terms, not very reliable. But I may be missing something in their technology.

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Old 03-04-2013, 12:15 PM   #12
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How does one tell the active date this 7 years starts from?
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Old 03-04-2013, 02:39 PM   #13
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On the back of the LP detector should be the manufacture date. The Atwood ProTechTor model 2001 that I am replacing has a sticker.
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Old 03-04-2013, 03:20 PM   #14
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I have the same model so will fig out how to get it out and check. Last year I had
the service shop check everything out and they replaced the co and smoke det
with a new one and said the rest was up to date and working but I have been
told b.s. before.
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