Yah, it's a common problem on some tanks...
The valve might be stuck or it's been turned on too quickly and the saftey valve stops the flow.
Try turning it OFF, and slowly turning it back on..
Next would be to drop the tank to drop the sticky valve. If you can, pick up the tank apx 4" and drop it to shake the valve loose.
Having said all that, a 13yr old tank/valve, might just be getting old..
I'd run it by an AmeriGas or propane dealer to have them check it out..
I used to have a litle 3lb, tried to get it filled at 2 different gas/propane stations, no go due to valve. Finally took it to the Propane dealer, filled it right up. No problem-O... He thought is was due to the filling tank pressure.
Also, if the tank "freezes" white condensation on the side would indicate that, the propane inside won't evaporate so that might do it, but if in a camper, shouldn't be that cold...
Hope that helps.
(and yah, what Devocamper said, there's the time on the old tanks, I thought they had a newer safety thing on the newer tanks and stopped filling the older ones..)
Frank PooleRoam'n ROG (Full Timer since Oct '15)
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