BBQ gas leaking from regulator vent

Try this:
Reset the regulator by turning off the burners on your gas grill. Turn off the propane tank and disconnect the hose from the tank. With your gas grill lid open, turn the burner knobs to high for about two minutes, and then turn them off again. Reconnect the hose to your propane tank and slowly turn on the gas.
*** some regulators, not all need this to be done for safety.

Hope I helped

blue flame? if flame is not blue, then air gap needs adjusting. if blue flame and burner control is on high, then could be your regulator. (assuming tank if full)

I apologize I've not logged in for some time and do not know what "everyone else" has had issues with.
I can tell you as a grill repair company we get 4-5 calls every week from clients complaining of poor flames, poor heat. The problem has a very simple solution and the problem is not the burners or other parts and (almost never) the regulator.
There are 3 safety features in an LP cylinder. One is a check valve that gauges pressure leaving the tank. This is a swing-arm pressed up by escaping LP. When the gas fills the manifold and gas line (because the BBQ valves all Must Be Off when the cylinder is turned on) the pressure pushes this swing-arm back into position.
The problem usually occurs with newly filled tanks because with the tank full and the OPD float displacing liquid pressure the gas "hits" the check valve swing-arm too hard so instead of registering the pressure leaving the tank the swing-arm is pressed too far and the back-pressure does not reseat it correctly.
The mechanics of the tank are designed to read higher pressure leaving and lower pressure returning as a leak and shuts-down. We still get some flow because of the OPD pushing but the tank will not allow gas flow at the necessary BTU's.
Reset: Turn off everything on the BBQ and the LP cylinder. Disconnect the cylinder and turn the BBQ valves all to "high".
Wait 5 minutes.
Turn everything off again -- and be sure every valve is completely off so no pressure is released.
Reattach the LP cylinder to the regulator and turn the tank on -- very, vert slow for the first full rotation so the gas pressure leaks through slow and cannot "hit" the check valve too hard.
Once the cylinder os all the way on light the BBQ and it will be fine.

Please let us know how it goes.
If I had one dollar for every time someone contacted us to buy burners, regulator, etc only to fix their BBQ while on the telephone with us ... I would retire!

Fix the gas leak that is allowing the liquid propane to escape. Turn off the gas tap at the regulator and the unit will thaw out by it self. Regulators work by allowing the liquid to become gas which the engine runs on and in this process the temperature drops dramatically. Normally there are radiator hoses that keep the regulator heated to prevent the icing

The regulator is part of the Regulator/Hose Assembly. You won't be able to separate the regulator from the hose. You have to remove the whole assembly by turning the coupling connection at the grill head counterclockwise. I assume you won't to replace the regulator. If that's the case, you will have to purchase the whole regulator/hose assembly.They are not expensive and can be found at any home center or hardware store that sells gas grills and accessories. Take your old one with you for comparison.

Hope this helped you and Happy Grilling!!

age of the grill is irrelevant, i am old and i still can do few thingzzzz...

i assume that your regulator is connected directly to the bottle, then hose to your bottle, then hose is connected to the regulator and other end to the grill?

or it is bottle, hose, regulator, grill?

you need to follow the path regardless, be outside, light breeze is better, no open flame in at least 20m (yards) radius in any direction.

1. close gas bottle/tank
2. disconnect, everything from the bottle
3. crack open tank valve and hear if gas is escaping, close valve back
4. connect regulator to the bottle and again crack open the valve, hear if you have esacping gas, allow actually whiff of gas against your cheek or wetted finger to establish the flow. close the valve
5. connect hose to the regulator (procedure is reversed if first is hose and then regulator), crack open the valve, hear for escaping gas, check against wetted finger and cheek if there is flow, close the valve
6. connect your grill open all valves on it and open valve on the tank/bottle. allow free flow for about 30sec, close valves on grill. vent grill for about two minutes, try to ignite any of the burners. if burner ignite, you solved the problem, if they do not, and you did have flow on all previous stages, close bottle valve, disconnect everything from grill, clean grill valves and nozzles (burner have nozzle inside!), reconnect and vent again, try ignite, if ignition occures, you solve the problem, if not, then you are due for new grill...

if at any stage you do not have gas flow, this meant that this particular piece of equipment is in trouble, this particular piece of equipment need then repair or replacement, under no circumstance pull apart the reducer! NO OPEN FLAME DURING TESTING!!!

It could be a defective LP gas regulator or a restriction somewhere in the gas line for the bbq. This can also happen if the propane tank is overfilled.

First make sure that the LP tank is not overfilled. If you open the bleeder hole on the tank(small screw next to the valve) there should be no liquids coming out. If liquid propane is coming out then the tank is overfilled. Keep the bleeder screw loose until the liquid disappears then tighten. Re-connect the tank and see if that fixes the problem.

Then inspect all the gas lines on the bbq. Make sure that there are no kinks or crushed lines.

Then take a look at the gas regulator. Try turning on all the burners then give the regulator a couple good taps on the housing with something solid. See if the burner changes size. If it does and then goes back down it could be the gas regulator. Also take a look at the regulator housing. There should be a very small hole on the housing and it might be labled "vent". Make sure that this little hole is not plugged with any debris or that can cause a low pressure problem. You can use a sewing needle to gently poke out the hole. You will know if it worked because the burners will become much higher. And you could also try disconnecting the hose and regulator assembly from the bbq then turn on the LP tank slowly with the regulator connected. You should get plenty of gas flow from the end of the hose. Then use your hand to block and release the flow a couple times to try and clear any debris that might stuck in the regulator.BE VERY CAREFUL DOING THIS!!! MAKE SURE YOU ARE CLEAR OF ANY SOURCES OF IGNITION BEFORE TRYING TO CLEAR THE REGULATOR. Then reconnect the hose regulator and tank to see if the problem is fixed. If you are getting very low flow from the hose with the regulator disconnected then it is probably a defective regulator. They are pretty standard and you can purchase a new LP hose and regulator assembly from most home improvement stores.

If the regulator checks out good then I would think that there is a restriction in the main gas line for the bbq after the regulator. You will need you dis-assemble the main line and blow it out with some compressed air to clear the restriction.

Most likely your regulator. Changing the Regulator

Hello...I have the same grill and want to do the same conversion...From my research, you need to drill out the three orifices with a size #53 wire gauge drill bit. ( this resizes each orifice to 12000 BTU's each, which the grill is rated at 36000 BTU's).Then remove the existing hose and regulator. Replace the hose with a Quick disconnect compression fitted hose. The NG supply needs to have a pressure regulator installed, with a shutoff and quick disconnect fitting installed. Connect the hoes from the grill to the supply, and fire it up...THIS IS WHAT I INTEND ON DOING TO MY GRILL,BUT YOU DO THIS AT YOUR OWN RISK>>>

I switched to the new style 20# tank with the new turn-on knob.  I couldn't get enough gas pressure to the BBQ burners for all three burners to light or to keep a strong flame on even one burner.  The new style tanks have a safety valve on the inside of the tank that shuts the gas off if you turn the knob on too fast because the safety valve thinks there is leak.  Shut everything off and then try turning the knob on real slow, especially at first, before turning it all the way on.  If that doesn't work (it didn't for me), then replace the large plastic connection valve knob (female end) that attaches the regulator to the tank.  Mine was for the old style tank and was black (low pressure).  I went to a propane company and had them replace it with a green knob (higher pressure).  Took it home and WALA!  Everything works fine now.  But it was very frustrating trying to figure why I couldn't get any gas to the burners after buying a brand new tank.  I hope this helps solve your problems.