Gas line Problem or Not? - Page 2 - Fiberglass RV

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Old 05-13-2007, 03:19 PM   #15
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Trailer: 2002 19 ft Scamp 19 ft 5th Wheel
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If U disconnect your gas lines, when it comes time to connect them up the gas people around here use Tinker Can Blue #10 sealer on the gas connections.

Stock Number SOS 10-B.

Here is an interesting site about gas lines:

The directions on that site says to use either a Pipe thread sealant or a flare surface is OK however around here, they use both just for extra safety. I can see where that might be a major + in a camper that is jolted around.

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Old 05-14-2007, 04:02 AM   #16
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Trailer: Boler 13 ft
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Thermocouples go bad all the time

Thanks Darwin....I forgot all about the Thermocouples. in fact I thought with with the standing pilot I wouldn't need one because on my house boiler this thermocouples heats up with electricity and has no standing pilot, hence the need for electricity.
I will remove this today and get new one also there is a sensor in the front of the burner chamber, another safty device incase of fire I may look into another one of them.

I did clean lines with compressed air and put on new regulator and had a much bigger flame on stove and at pilot to furnace so the work was not in vain but as you can tell from above still no furnace burner flame.
I will keep you all posted.
Gerry the canoebuilder

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Old 05-15-2007, 04:29 AM   #17
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Trailer: Boler 13 ft
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To all:

I took out the thermocoupler yesterday and thought it very strange the gas line that runs the pilot light was going into a port, on the front of the furnace, that was about an inch above and to the left of the thermocoupler??? Does anyone else have a 1980 DouTherm furnace and does it look like that???

I went to an RV dealer and got another thermocoupler and asked the service man and he said that in some furnaces they used a flame deflector on the end of the pilot nozzle that would redirect the flame into the coupler. He also said this diflector may be burnt off not allowing the flame to hit the coupler. Maybe so but if anyone could check and let me know it would be great. My wife said it worked last year the way it was so do not change the positions of the pilot gas line and thermocoupler.

The sensor in the front of the furnace is a over-heat sensor and the shop didn't have one but I found out it is a normaly closed switch so I will test it with ohm meter and if need be by-pass it for a test run when I get the new thermocouplin in today.

I will keep you all posted on progress of the Lady-Bug.

Gerry the canoebuilder
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Old 05-15-2007, 12:05 PM   #18
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Trailer: Boler 13 ft
Posts: 531
Thanks to all the advice and I am glad to report that the Lady-Bug is warm and toasty now... Checked the pilot with inspection glass off and it looked just fine and then installed new thermocouple but had to retro fit the new couple with old insert becuase the new threads on furnace end would not go in.

After first try pilot didn't lite so I adjusted the pilot up higher on the gas valve and it worked then after about 2 minutes the thermocouple glowed red and "WHOOSH" the burner lit.

So after $45 for parts and alot of help from friends on this site I now can go out without the worry of the wife saying she will never go again this early in the season.

thanks again.

Gerry the canoebuilder

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