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Old 12-24-2007, 10:54 AM   #1
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We have a 1989 Winnebago Chiefton. It sat for several years, and now the propane tank will not accept propane. We have had the fill valve replaced, but everytime we try to have it filled it acts like it is full. There is one propane dealer that has been able to get the tank to fill, but he has to turn his pressure down to about 1/8 - 1/4 of the normal pressure. The local RV service center seems to be at a loss. We don't even know who to take it to.

Thanks,
Des
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Old 12-24-2007, 10:54 AM   #2
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We have a 1989 Winnebago Chiefton. It sat for several years, and now the propane tank will not accept propane. We have had the fill valve replaced, but everytime we try to have it filled it acts like it is full. There is one propane dealer that has been able to get the tank to fill, but he has to turn his pressure down to about 1/8 - 1/4 of the normal pressure. The local RV service center seems to be at a loss. We don't even know who to take it to.

Thanks,
Des
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Old 12-24-2007, 12:21 PM   #3
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Being that old, I would suspect that the tank is full of gunk and needs replacing or purging.
For that I can only say Good Luck. You did not state what type it was, Onan etc. If it is an Onan and you live near San Antonio, Tx someone told me the Cummins Dealer will purge it, but I can't say for sure. I am still looking.

I have a 98 Discovery, with Propane generator and I am having a problems finding someone who will either purge it or replace the tank and then change the carbuator to run on vapor instead of fluid so that it quits junking up.
My tanks are 10 years old and I suspect that they are full of gunk. I have talked with other folks who have the same problems but they live up north and they got theirs fixed, so if you can find someone I will be watching this string close. I know the feeling of being very frustrating for you.

Bob E.
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Big Spring, Tx
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Old 12-24-2007, 12:23 PM   #4
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Sounds as though it may have rusted up on the inside. If they can't clean it out,you will have to get another one. If this was me I would take the tank loose and see if it could be set up with the 20lb. portable tanks.

Joe
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Old 12-24-2007, 12:57 PM   #5
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Des;

You did not mention the bleeder screw. You must open the bleeder screw for the automatic shut off valve to reset itself and accept liquid. I have already had to tap the valve with a hammer to coax it to open. This is my opinion only. I believe there is a float that rises with the fuel and shuts off when it reaches approx 80%. IT then needs to open when the float drops. I have heard the valves snap open when I tried to fill the tank. Some times it takes pressure to do this. Opening the bleeder screw decreases the inside pressure and it increases the differential pressure needed to open the valve.

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Old 12-24-2007, 06:02 PM   #6
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By federal law propane tanks must be pressure tested, I think it is something like every 20? years. Maybe less, The propane dealer should be able to tell you. It unfortunately may be time to replace or at least have it tested if it has major corrosion. Up north road salt can do major damage to the steel tank, Though I think Petro may be onto something with the bleeder valve since you have to fill it slow.
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Old 12-24-2007, 06:36 PM   #7
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Les and Des, welcoem to iRV2.com. We are glad ot hav eyou join us. As mentioned open the bleeder valve. If nothing comes out it could be clogged. I would recommend you have a qualified LP gas service provider inspect and/or repair the system. Good luck and keep us posted as to what is found.
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Old 12-24-2007, 06:43 PM   #8
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Hillbilly2:
By federal law propane tanks must be pressure tested, I think it is something like every 20? years. Maybe less, The propane dealer should be able to tell you. It unfortunately may be time to replace or at least have it tested if it has major corrosion. Up north road salt can do major damage to the steel tank, Though I think Petro may be onto something with the bleeder valve since you have to fill it slow. </div></BLOCKQUOTE>As for requalification, there is no current regulation that requires periodic recertification of vessels designed to ASME specs. This means any permanent mount tanks on your motor home. DOT spec tanks require periodic requalification. The ASME tank are the ones mounted horzonially and usually mounted under the motorhome in a compartment and attached to the motorhome frame. They are much heavier walled than a DOT spec tank.

I know, that doesn't help the problem any.
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Old 12-24-2007, 06:51 PM   #9
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Everyone has been so helpful. After the holidays we will be checking ino having the tank pressure tested, etc. All of the place who have tried to fill the tank have used the bleeder value to release pressure, BUT maybe it is slow.
We will keep you posted!!
Thanks again!
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Old 12-25-2007, 04:18 AM   #10
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Welcome to IRV2.

I would go back to a propane distributor and have them recheck your valves. These tanks and valves are not that complicated in the hands of a propane professional. The RV dealer won't be able to help you.

Your tank is more than likely manufactured by Manchester Tank, give them a call or email for a certified repair facility in your current area.

Good luck and keep up the good work.
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Old 12-28-2007, 11:12 AM   #11
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Les,
If you have the same type tank as I do (ASME over 20 years old), underneath the fill valve there is a push button safety valve which must pushed in with a small crowbar (or any small bar) while the tank is being filled. You can't see it except from underneath. Most of the guys at the propane places don't know this unless they have been around a while.
Pat
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