Close the tank valve and wait 30-45 seconds, then open it slowly. there is an excess flow built into the valve or hose end the is suppose to close if the hose ruptures, sometimes opening the valve to fast especialy if you have run out of gas will cause it to close. Usally you will hear a click but not always.
Jim & Debbie England
Do you have Gas? 2015 F350 6.2L CCLB DRW 4.30 axle. 2012 Yellowstone Ridgeline 34RLT Fifth Wheel