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Old 09-04-2015, 04:18 PM   #1
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loud pressure sound

While driving for about a hour or so, we always hear a loud hissing sound like pressure release, followed by a strong smell of propane and the Lp gas alarms goes off. It last for about a minute or less. Once that happens, everything is fine. The generator is off and fridge is running on Lp gas. I don't think that is normal? Please help and advise
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Old 09-04-2015, 05:10 PM   #2
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Your LP tank may have a defective or weak pressure relief valve.
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Old 09-04-2015, 05:13 PM   #3
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I wonder if that is something we can check? We are driving right now.
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Old 09-05-2015, 11:13 AM   #4
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It may be overfilled by someone that doesn't fill it by loosening the bleed screw on the side of the valve.
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Old 09-05-2015, 07:11 PM   #5
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What RV do you have? There was a thread here before about propane tanks in a certain model of motorhome that got hot from heat radiating from the exhaust system, causing pressure to build up and blow out the propane pressure relief valve. I think the fix was adding some insulation somewhere.
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Old 09-05-2015, 07:14 PM   #6
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Here is that thread:
https://www.jaycoowners.com/forums/f5...ems-15036.html
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Old 09-05-2015, 07:27 PM   #7
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Thanks for finding that Norty1. I was too lazy to look it up myself.
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