Propane BBQ issue

mpierce wrote:

ScottG wrote:

tonymull wrote:
When you connect a low pressure appliance to a high pressure tank, which is your case, safety stops can be activated and cause little or no propane to get to the appliance. Turn the propane off at the tank, then open all the valves on the grill if that is the appliance in use. Shut them and unhook the hose at both ends. Now reconnect the hose and very slowly open the tank valve (this lets the pressure build slowly, now open the grill valve and light. Works like a charm. If it doesn't you may need a new regulator for the grill, but that is unlikely. Best to then leave the tank valve open if you can or make sure you always open is slowly.

Good thought but the OP is not connecting a low pressure item to a high pressure tank. The pressure in the RV's lines is low pressure because it's after the regulator on the tank.
Quick disconnects on RV's are always at regulated pressure - not tank pressure.

Not true. "ALL" are low pressure? No. I have both a high and a low pressure QD. I know others who also have high pressure connects.

OK, lets try it this way... (somebody always has to be the exception) If there is a regulator on the propane tank that feeds the lines in the RV then the pressure throughout those lines in the RV are low pressure.

OP, try this:
Connect your hose. (You should be working against spring tension. If not then the fittings are not compatible)
Now use the collar on the female quick disconnect to release the hose.
Does the male fitting shoot free of the female fitting or does it just get loose and stay in the female end?
YES: They are probably compatible.
No: The size of the hole in the end of the male fitting is too big. You either need to replace one of the QD fittings so they all match or install a bushing as I've shown.