Question about Jenn-Air JLG7130A

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No gas flow

I seem to have an issue with my BBQ not getting a flow of gas from the tank through the regulator. We used the BBQ the day before we left for vacation and came back two weeks later to a none operational BBQ. It seems that the regulater end that plugs into the tank valve does not depress, what I believe is, the withdrawl valve. I have no flow form the tank to the regulator but if I manipulate the connection to the tank I can get it to flow momentarily. It is clearly not an issue with the tank as i have used two different tanks to test with. it just strikes me odd that it worked the last time we used it and now, with no changes, it does not. Should i just bite the bullet and try a whole new regulator?

Thanks,
Steve

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  • jrwarman Oct 27, 2008

    I have the exact same problem. All of the sudden there is not enough gas getting to the burners. If additional burners are turned on the flame lowers on all open burners as there is not enough gas to feed all the burners. Even if only one burner is used, I can only get only half of the normal burn

  • Anonymous Apr 09, 2009

    The last time I used the bbcue it worked fine. Then wwe had a big rain, and while the lid was down, it hasn't worked since. I've taken it apart and cleaned it. Any ideas? Could the regulator be wet?

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  • Jenn-Air Master
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Sounds like the best option you can not fix them

Posted on May 25, 2010

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2 Answers

BBQ does not get hot enough to cook properly. All gas jets are clean as BBQ is almost new


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)

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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!

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flame running back is an indication of insufficient gas pressure or flow. check and adjust the regulator and ensure that there is no blockage in the jets.

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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.

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1 Answer

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The new style2_bing.gif OPD valves have a small brass ring located in the female fitting on the LP tank. Over time this ring can work loose and then it does not allow the male fitting to fully depress the OPD valve thus reducing your gas flow
Using a small flat bladed screw driver tighten the small brass ring This should solve your problem
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The new style OPD valves have a small brass ring located in the female fitting on the LP tank. Over time this ring can work loose and then it does not allow the male fitting to fully depress the OPD valve thus reducing your gas flow
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