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Old 09-29-2016, 07:19 AM   #1
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No hot water when running on propane

Suburban water heater in my Wolf Pack toy hauler. Was working when the weekend started, then stopped working. Propane tank is full, gas is running into the trailer (can light the oven burners) I hear the lighter click on, smell propane at the water heater, but it won't light. If I stick a long lighter in during the lighting process it will fire, but then just shuts itself off. If I run it on the electric I have smoking hot water.

Any ideas?
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Old 09-29-2016, 08:01 AM   #2
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*HERE's* a link to Suburban's service manual & troubleshooting guide.
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Old 09-29-2016, 10:03 AM   #3
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A 2017 should still be under warranty, so I wouldn't do much beyond checking for something in the burner tube, and maybe cleaning the orifice.

It may be the flame sensor bad, and you'll want them to change that under warranty.
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Old 10-03-2016, 08:18 AM   #4
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Called the local Suburban repair shop. They can't get me in for a couple weeks and I am using the trailer this weekend. The guy there said it was probably the electrode. I ordered a new one from Amazon and installed it yesterday, still no go. Seems to me the electrode isn't getting power, guess I'll have to let them work on it when they can.
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Old 10-03-2016, 08:41 AM   #5
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Have you tried cleaning out the burner tube either with a very flexible brush or at least a blast of compressed air. Maybe something has found a new home in it. I cleaned mine out a few weeks ago by disassembling the tube and brushed off the electrode with a brass brush and blew it an the burner chamber with compressed air. It's working perfect now, you may be just as lucky. Wear safety glasses when you blow all the crud out!
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Old 10-03-2016, 08:48 AM   #6
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If the flame starts when you use a lighter and then goes out I would say it is your flame proving system is not seeing the flame and shutting down the gas valve. May be a problem with the board and warranty work.
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Old 10-03-2016, 08:50 AM   #7
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Jeff, I did clean the tube yesterday. It's definitely getting propane because it lights when I use a lighter, but does not stay lit or light on it's own.

Seadog, that's what I'm thinking.
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