bbq: I recently ran out propane in a 20lb tank and had it refilled. Once installed and valve turned on tried to fire it up to no avail with either the igniter or match. I then hooked up another tank and it worked fine which obviously tells me it is not BBQ malfunction. Any ideas?|||The inline safety value is stuck. It's designed to prevent leaks. Check your tank and hose hook up for any blockage or safety caps that might have been put on the tank when it was last filled. Most propane dealers only fill the tanks to 80% of capacity or at least thats the right way it should be done If the tank is filled too full it can force the valve closed and block the flow of propane going to your grill. Take it back to the "Filler" and have the tank checked.This can easily be done in just 2 minutes.Good Luck!|||The valve may simply be frozen. (yes it happens in the summer as well) Propane gets VERY cold when changing from Liquid to Gas which causes the valves to freeze up. I don;t recomend it but if you "drop" the tank from 6" off the ground It might free up the saftey mechinism in the tank.|||THE NEW ONES HAVE A VALVE THAT WILL NOT DISCHARGE UNLESS HOOKED UP. THIS MAY HAVE MALFUNCTIONED.