Propane not flowing from 2nd tank

[jim1225]

gas will not flow from second tank. could it be the gr-630 regulator?

[steelpony5555]

Had this just happen....I disconnected the regulator hose and switched the valve to the other tank.....reconnected and switched the valve back and then slowly opened the tank valve and the propane flowed ....only happened once and not sure exactly what caused it.....

[Bama Rambler]

Sometimes the excess flow valve will close when you turn the cylinder valve on too fast after reconnecting it. Close the cylinder valve loosen the nut, then retighten the nut and slowly open the cylinder valve. That may solve your problem.