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Old 11-05-2019, 12:20 PM   #1
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2013 25' Flying Cloud
Provo , Utah
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No heat in 20 degree weather!

We were camping in Moab,Utah this weekend. The weather was 50 degrees in the day and 20-30 at night. For the first two nights (20 degrees) everything worked fine. Furnace, propane all functioned perfectly. The last night we went to dinner only to return to a non functioning furnace and a 50 degree trailer. The trouble code on the furnace showed a 3 blinking light sequence which indicated a "flow" problem. I tried to re-set the furnace 3 times which didn't work. Went to the stove and tried to light a burner. The burner lit for a few seconds and then died down two or three times which led me to believe that the propane valve below the tanks was malfunctioning and not letting propane through to the furnace. Tapped on the valve, changed indicator to the other tank which was completely full with no success. Needless to say it was a very cold night trying to sleep even with three blankets! The next morning the lines in the trailer were slightly frozen but thawed out fairly quickly as the sun came out and warmed everything up. Just for kicks I re-set the furnace and IT WORKED and has been working perfectly ever since!!! I bought a new valve just in case for the next time. Any suggestions?
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Old 11-05-2019, 12:48 PM   #2
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By "valve", I assume you mean regulator. That would be my first suspicion.
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Old 11-05-2019, 12:57 PM   #3
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2014 20' Flying Cloud
Long Island , New York
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These "propane regulator bad" search results should pull up some productive threads:

https://www.google.com/search?q=prop...com&gws_rd=ssl

They can fail in intermittent and random ways IMO. In terms of timing, do you think the flow of gas was reduced right at the time when the regulator was switching to the new/full tank?

Try the new one and let us know if that solves the problem.

Good luck,

Peter

PS -- This site's time stamp function is still not adjusted for DST IMO. Now 1:58 EST, and the time stamp above is 2:57 PM.
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Old 11-06-2019, 10:24 AM   #4
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2013 25' Flying Cloud
Provo , Utah
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Yes I did mean regulator and today, 3 days later it is not working again. Iím going to replace it with new regulator and see if that fixes the problem. Iím sure the problem was not the tank pressure because at the failure time neither tank would work.
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Old 11-06-2019, 10:50 AM   #5
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Our 13 31’ Classic furnace may work or may not...someone told me when switching tanks to turn the valve on very slowly....bingo ...no more problems with the furnace, works every time
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Old 11-06-2019, 12:44 PM   #6
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Ditto your bingo . . . most regulators have a safety feature that prohibits rapid gas flow, which is sensed as a ruptured tank or broken gas line. Turning the gas on slowly tricks the regulator into not concluding that something major is wrong.

BTW most BBQ 20-pound tanks also have the same safety feature.

Good luck with the new regulator.

Peter
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Old 11-06-2019, 12:52 PM   #7
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Your tanks have an over flow protection valve that shuts off the flow if it seems excessive. Close all valves on the tanks, and shut off all propane appliances in your trailer. Open the valve on the tank that you know has propane in it, SLOWLY. Go inside and light the stove and let it run for a couple of minutes. Then, turn on your propane HWT, if it is full of water. Once it ignites and runs, turn on your furnace. If that does not work, you have a faulty regulator. Good luck!!
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Old 11-11-2019, 06:29 AM   #8
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Quote:
Originally Posted by Chuck Barber View Post
Yes I did mean regulator and today, 3 days later it is not working again. I’m going to replace it with new regulator and see if that fixes the problem. I’m sure the problem was not the tank pressure because at the failure time neither tank would work.
Wondering if the new regulator solved the problem?

Peter
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Old 11-12-2019, 09:46 AM   #9
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2013 25' Flying Cloud
Provo , Utah
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New Regulator

When we got up the next morning I reset the furnace and it worked PERFECTLY!
Upon returning home I ordered a new regulator and put it in my AS just in case this ever happens again. My AS has been sitting at my house with the furnace working perfectly as we prepare for another trip this weekend to Zions National Park. Hopefully I wonít have to replace the regulator in the middle of the night at Zions! I keep you all informed. Thanks for all of the suggestions.
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Old 11-12-2019, 11:05 AM   #10
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Not a bad idea to carry a spare if you camp a lot in really cold temperatures and you don't have shore power. I just replaced a regulator on one of my trailers. The pressure was too low. Also get a screen to go over the inlet and outlet of your furnace. Bugs can get into the furnace and really mess it up.



Perry
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