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mrgreetis's avatar
mrgreetis
Explorer
Jul 10, 2014

LP gas detector replacement

I had a strange occurrence the last time we took our TT camping about 2 weeks ago. I was camping with my son, son-in-law and 3 of the 6 grandsons. A couple of us slept in the TT and the rest in a large tent. We had just gotten hit with a good thunderstorm and everybody came into the trailer except my son-in-law who was holding down the tent.
When my son came in and closed the door the LP detector went off and would not stop. I thought it was because of his e-cig or e-cig juice. I turned off the propane and the alarm would not clear. I then cut the positive wire to the alarm.
The next day we pulled up camp and came home. I decided to re-hook up the detector to see if the alarm could be cleared, but it just kept blaring away. Just to make sure there wasn't an issue I totally disconnected it, removed it, and took it to the garage. There I jumpered it to a fresh battery (checked voltage - it was 12.7v) to eliminate the low voltage alarm, and it again kept blaring away. I tried pushing the test button, hoping that would reset it, but no luck.
It is an Atwood Protechtor, model GS961LP-RV, with a MFG date of Feb, 2011. I would think that a 3 year old detector wouldn't need replacement already. Also it was a year past the warranty coverage so I couldn't use that.
For the safety factor I decided to bite the bullet and replace it. I checked around and fortunately Camping World had the Safe T Alert ones on sale. I picked up a Model 40-441-P-WT for $53 instead of almost $80. I installed it and, unless I pressed the test button, it was pleasantly silent.
I just wanted to share my experience to encourage those who have the same thing. I have no idea what went wrong, it might have been something with the thunderstorm. I am planning on getting my propane system leak checked just in case.
Mike
  • The sensors do have an end of service life to them, but usually this is around 5 years from what I have heard.

    Although in my experience, aerosals used in the camper tend to do the most damage. Hair spray, furniture polish, cooking spray, etc. All of these tend to attract to the sensor itself in such a small environment which leads to a malfunctioning sensor. Usually intermittingly.
  • It probably was a failed detector but the recommended procedure is to do a leak down test on the LPG system. You can do it yourself with a homemade manometer.

    Your manual probably recommends a full LPG system test once per year.
  • Had one go off like that at 3:00 am. No evidence of any gas leak, prayed that there wasn't one that I missed, cut the wires and went back to sleep. The CG camp store had one in stock, and the next day we were back in business.

    Weird how they go bad...no indication that they are failing, until you can't turn it off....