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08-02-2020, 03:00 PM
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#1
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Junior Member
Join Date: Jun 2010
Location: Durango
Posts: 5
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Dometic fridge on propane shuts off at night
Long-time reader; first-time poster. I have read plenty of posts regarding issues with the new fridges (mine is a Dometic RM1350SLMX) not running on propane at elevation. After experiencing this issue while camped at around 10,000 ft, I assumed I had a similar situation. But now I'm not sure. This last week we camped again at elevation, but this time only around 7,200 feet or so. Fridge ran great the first day we were there, but woke up the first morning to find that it had stopped during the night. Now this is where things were different than the previous trip at 10K elevation -- I turned it off, and turned it back on, and it relit! And it stayed relit all day, but quit during the night. Turning it off/on worked again the next morning. When I was at 10K elevation, it would not re-light automatically -- but would if it used a multipurpose lighter. Why does it go off at night (I'm assuming because it gets cool outside so it shuts off -- but then can turn itself back on automatically?) Do I have an automatic spark igniter problem? Any help/input/advice would be greatly appreciated! Thanks!!
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08-02-2020, 03:11 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,347
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Welcome to the forum
You may have a flame sensor/sparker issue. Take the bottom cover off and start the fridge on LP. Once it’s lit, let it operate for a minute letting the sparker/sensor get hot. Then blow it out and see if it starts to spark and attempt to re light. If it doesn’t, then I would check the gap between the burner and the sparker. 1/4” if I remember. I’m leaning towards a bad sparker/sensor.
The flame will shut off once the fridge reaches temp, and during the night your not opening the door so it can get cold. You may have a thermister issue but let’s rule out the sensor.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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08-02-2020, 03:48 PM
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#3
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Junior Member
Join Date: Jun 2010
Location: Durango
Posts: 5
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Thanks Chuck. I blew out the flame and it immediately re-lit. So, does that mean a thermister issue -- and if so, do you have any advice on how to address that? Thanks!
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08-02-2020, 07:10 PM
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#4
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Senior Member
Join Date: Oct 2019
Location: Central FL
Posts: 1,090
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Think about getting yourself an Acurite wireless freezer and fridge sensor. It has high and low alarm set points. If your fridge or freezer gets out of the set range it'll alarm and let you know something's up. It's nice to be able to see at a glance what the temps are in both areas without having to open the door(s).
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I keep the monitor in the truck when traveling (yes, it reaches that far) and I can monitor the fridge temps to be sure the propane lights and doesn't blow out.
__________________
2023 Cougar HT 23MLE
2020 F250 XLT CC 6.2 4WD
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08-02-2020, 07:55 PM
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#5
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,347
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Quote:
Originally Posted by dgocamper
Thanks Chuck. I blew out the flame and it immediately re-lit. So, does that mean a thermister issue -- and if so, do you have any advice on how to address that? Thanks!
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It may. The test I had you do was. A “quick test” of the sensor. You can download the service manual for your model and it should have some specific tests.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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