Question about Weber Q Grill

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Low gas flow - low heat

I am running the Weber Q off of a 20 lb propane can with the adapter hose. It has worked fine for most of a tank. All of a sudden it stopped putting out full heat. One clue might be that if I turn suddenly from low to high there is a brief surge of gas that subsides after a second or so. It seems to me that this might be a problem with flow in the regulator. Could it be dirty? Defective? How do I fix it?

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  • reedt Apr 21, 2008

    I just used my weber q200 for the first time and it worked great all day using a standard size tank attached with an adapter.On the second day my grill would not heat above 350 degrees? whats the deal?

  • dthomson Apr 23, 2008

    I am having a problem with the Baby Q running off of a a 5 lb bottle because of very low flame height. It works fine if I use a small MAP gas cannister. I don't know if the problem is the hose, the bottle or the gas or the BBQ.

  • BU10AS May 10, 2008

    I have the same problem

  • Anonymous May 29, 2008

    flame low to non-existent--got it to light with a match but temp was very low. cleaned insect screen and took off burner and cleaned it out according to weber q instructions. put it back in and now no propane flow at all. could this be a regulator prob or safety valve.

    initially thought i was out of propane--took tank to be refilled--it was half-full

  • carol8 Jun 11, 2008

    Weber Q grill-low flame, propane flow?, long time to heat up,almost useless!!Have had a Weber charcoal grill for over 20 years .Excellent!!Can,t say the same for Weber Q.

  • Anonymous Mar 27, 2009

    I am very disappointed in this grill. I've had the low flow problem from day one. I've gone through all the tips on the Weber web site, but they have not helped. It is going out with the garbage. 

  • Anonymous May 22, 2009

    Same issue. Can't get consistent, strong flame from the Q. Seems like the manufacturer ought to know of this and have a resolution.

  • Anonymous Mar 23, 2014

    Replaced regulator and hose, different tanks didn't fix.



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The only way you can fix the low flame, low heat problem, is to remove the grill, take a medium sized paper-clip (staightened out) and clean out each individual hole on the steel burner, flame tube. (I'm sure there's a technical name for it).

Since they (the holes on the flame tube) face up unprotected, directly under the grill cooking surface they tend to get blocked quickly with continous use and certain foods, like pork ribs. Bad design unless all you plan on grilling is hot dogs.

There are about 500 individual holes, so plan on being there a while. Or in other words, do it close to the cooler.

I've been tempted to toss the thing into the woods a bunch of times over the past 2 years I've owned the dumb thing.

Good luck!

Posted on Jun 13, 2008

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I have had my Weber q for about 6 years, I use it often and had very little problems. I have noticed that when the tank gets lower that the flame does not go all around the burner...I usually blow on it until it lights all the way around. I have just purchased a replacement Burner tube for the grill because mine was extremely dirty. Don't waste your time trying to clean it, just replace for $15 online.

Posted on Apr 01, 2009

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I just tried the paperclip suggestion and it worked, Temp is back over 450 where before it only hit 250. Thanks EdgarBootes

Posted on Jun 14, 2008

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I've had the same problem (Q100 with the 20# tank) and I don't believe it's a matter of the holes getting plugged. I read about the regulator safety feature thing and followed the directions to 'release the safety feature', tried switching to the 1# bottle.

I believe it's simply a faulty regulator. I have a replacement regulator being shipped from Weber. I'll report back after I install the replacement!

Posted on Apr 24, 2009

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Checked out the Weber site. Seems like it might be the safety bypass in the regulator.

Posted on Apr 19, 2008

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Model Q200, Propane model Get no flame on the burner. Apparently, getting no gas. Something seems to be stopped up. What to do?

Whether you're using a 20 Lb Propane Grill Tank or a screw in gas canister, the solution to the problem is the same .

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3. Disconnect the hose from the tank or unscrew and remove the gas canister.

4. Wait 5 minutes and reconnect the hose to the tank or reattach the canister to the gas valve.

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if the above didn't solve the problem, you will either need to replace the Hose/Regulator Assembly or the Gas Valve/ Canister Holder. The Hose/Regulator Assembly you can pickup from any home center or hardware store that sell grills & accessories for about $30.00. If it's the Gas Valve/Canister Holder, you will have to purchase that from Weber or from Factory Appliance Parts Part # WEB4195 ($29.99) The adapter hose is also available there if you want to make it a one stop shop for $32.99

I hope ths helped you and thanks for choosing FixYa. Happy Grilling!!

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Won't light properly or vary the flame

You're probably turning the LP tank valve on too fast. Close the tank valve, disconnect it and reconnect it. Then very slowly turn on the tank valve. Make sure all your grill knobs are closed. Light one at a time and turn to low setting. After they are all lit, slowly turn up the heat on each as needed. Hope this helps. Douglas

Jun 07, 2010 | Weber Q Grill

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Works on small bottles \low flow on 5lb tank with adapter hose

t urn tank off disconnect from grill make sure knb is in off position reconnect make sure fitting is all the way on tank reconnect and try again if this doesnt work you may need new hose weber has had problems with thier hoses call them and order new one or call bbq galore and ask for 4ft adapter hose 214 696 0030

Aug 17, 2009 | Weber Q Grill

1 Answer

Low gas flow - low heat

Hi Lyon,
Yeah, it's the regulator. Fortunately, they're cheap and easy to replace!

You can look on line for part number 80012. Or you can remove yours and take it to Home Depot or Lowe's in the outdoor cooking area and match up a replacement. <--- they're all the same... just make sure the compression fitting (the brass end) is the same size.

The only other thing I could recommend is this... Turn the LP bottle completely off. Then completely remove the big plastic knurled knob from the tank. Now replace the knob back onto the tank (all the way and make sure it's tight). Then S L O W L Y turn the gas back on. Now try your pit. If you get the same flame, it's the regulator. If you get full flame, you just reset the safety device inside the tank.

I'm betting regulator. Good luck and happy cookin'!


Jun 03, 2009 | Weber Q Grill

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Cannot get good flame on the burner of my baby weber grill. I've tried cleaning it checked hose, tank, regulator, seems to have good flow, but low flame only, even when set in high????????

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I just experienced the same exact problem ! I just bought a brand new Weber E-310 a 3 burner grill.
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Then turn 2nd burner on low then to high.
And if you have 3rd burner or more, turn low then to high!

John I did this and my grill went to 600 plus in a few minutes!!

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