Question about Weber Genesis Silver B Grill

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Burner flames don't get hot, like not enough gas.

If I put on a full tank, with burners all the way on it's like a medium flame. With 3/4 empty tank, almost no flame. Regulator?

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Low flames means low gas flow! check gas levels, check pressure- leave gas tank at room temp for a couple of hours, check for leaky hose, or dust buld up! hoses can perish if left in sheds or garages over winter

Posted on Mar 19, 2012

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Try this, Turn off the tank. Disconnect it. Reconnect it. Turn tank valve back on very slowly and then see if you get bigger flame size.

Posted on May 15, 2010

  • Douglas Jensen May 16, 2010

    Are you still having issues? Let us know so we can help you further, ok?

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1 Answer

I have a brand new Weber 670S and put it together....the ignition will fire and I get a 6 inch flame, but the burners don't light....and the flame goes out when I release the knob...


Since the main burners and the rear infrared burner (if so equipped) comes already installed, I don't think your assembling it is the problem. It's probably the grill's gas regulator that is giving you the problem. That's assuming you are following the manual's instructions on how to light the burners, the first time. For now, Ill assume you did. If you open the gas tank valve to fast, it shoots high pressure to the regulator & locks it up.

So, to solve the problem, follow the directions below:

1. Turn the gas tank valve OFF and disconnect the hose from the tank.

2. Wait 5 minutes and reconnect the hose to the tank.

3. Open the tank valve VERY, VERY SLOWLY (Slow motion, slow).

4. Once the tank valve is fully open, light the burner farthest from the tank first and set the burner
control knob on HIGH. Does the flame height look correct for being set on HIGH? If so, light
the remaining burners the same way. Do all the burner flames look correct? If so, you solved
the problem. Remember, to always open the tank valve Very, Very Slowly.

If that didn't solve the problem, you will need to replace the grill's Hose/Regulator Assembly (It's 's not under warranty). It runs about $30.00 at any home center or hardware store that sells grills & accessories. If you replace it, turn the tank valve ON Very, Very Slowly.

Hope this helped you to troubleshoot and solve the problem. Happy Grilling!! And thanks for choosing FixYa.

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Whether using a gas canister or a tank, To solve this problem, first be sure you have adequate gas in the tank. If that checks out OK, do the following:

1. Turn the gas tank valve OFF and disconnect the hose from the tank. Or remove the canister from
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2. Wait 5 minutes and reconnect the hose to the tank. Or reinstall the canister into the holder.

3. Open the tank valve or canister valve VERY, VERY SLOWLY (Slow motion, slow).

4. Once the tank valve is fully open, light the burner and set the burner
control knob on HIGH. Does the flame height look correct for being set on HIGH? If so, light
any remaining burners the same way. Do all the burner flames look correct? If so, you solved
the problem. Remember, to always open the tank valve Very, Very Slowly.

Hope this helped you and thanks for choosing FixYa. Happy Grilling!!

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To restore gas to the burners, follow the instructions below.

1. Turn the gas tank valve OFF and disconnect the hose from the tank.

2. Wait 5 minutes and reconnect the hose to the tank.

3. Open the tank valve VERY, VERY SLOWLY (Slow motion, slow).

4. Once the tank valve is fully open, light the burner farthest from the tank first and set the burner
control knob on HIGH. Does the flame height look correct for being set on HIGH? If so, light
the remaining burners the same way. Do all the burner flames look correct? If so, you solved
the problem. Remember, to always open the tank valve Very, Very Slowly.

If that didn't solve the problem, you will need to replace the grill's Hose/Regulator Assembly. It runs about $30.00 at any home center or hardware store that sells grills & accessories. If you replace it, turn the tank valve ON Very, Very Slowly.

Hope this helped you to troubleshoot and solve the problem. Happy Grilling.

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1 Answer

I have my Weber Q grill hooked up to a large propane tank rather than the small tube type. It worked fine for a few weeks but now the grill only gets medium hot. Not hot enough to cook anything really. ...


Seems as if your grill is suffering from "Clogged Burner Syndrome". But, don't despair, it's easily solved by removing and thoroughly cleaning the burners or "coil" as you called it. Also, pay particular attention to the venturi valves on the open end of the burner. Spiders like to build nests in them. The venturi valve will look like a slot on the right and left of the burner tube, where it fits over the burner orifice. It's really a good idea to perform this routine maintenance, at the start of each grilling season.

When it comes to gas grills, it's like Benjamin Franklin said, "Cleanliness is next to Godliness."

Hope this helped you solve the problem. Happy Grilling!!

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1 Answer

Uniflame GBC772W grill is having some problems the burners do not seem to put out much gas to have a good flame on high i cleaned out the little burner holes but it seems like we don't get enough...


More than likely, the problem is with your grills LP Gas Regulator. To test this theory, tune the tank valve OFF and disconnect the hose from the tank. Wait 5 minutes and reconnect the hose to the tank. Turn the tank valve ON VERY, VERY SLOWLY (Slow motion, slow) until the valve is fully open. Now, light the burner farthest from the tank first and turn it to the highest setting. Has the flame height returned to normal? If so, light the remaining burners the same way. Do all the flame heights, now look normal? If so, you solved the problem.

If not remove the burners from the grill and clean the properly, as well as the venturi valve (part of the burner, where the burner orifice enters the burner) on each burner. As spiders like to go into them and build a nest. After a thorough cleaning, reinstall the burners and try again.

If that still did not solve the problem, you need to replace the hose/regulator assembly. You can get one at any home center or hardware store that sells gas grills and accessories. Be sure to take you old one with you for comparison purposes.

Hope this helped you troubleshoot and solve the problem. Please let me know. Thanks and Happy Grilling!!

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1 Answer

My weber grill (silver) does not get very hot after I open the top to do anything on the grill. What is the problem and how do I fix it? Dave Hendron


First, consider how long you preheat the grill and to what temperature are you preheating? If it's not long enough to reach at least 350 degrees, before you open the hood to start grilling. You're not allowing the grill to preheat long enough.

Second: Have you looked at the flame height on each burner when they're turned to the highest setting? It may be that the burners need to be removed and properly cleaned. In addition, the venturi valve on each burner may be partially clogged with spiders or spider webs. When that happens, the burners do get the right air to gas mixture/ratio and the burners don't fully light and heat up.

If the burner flames remain lower than they should, the grills regulator may be locked up. In which case, turn the tank valve OFF, disconnect the hose from the tank and wait 5 minutes. Reconnect the hose to the tank and turn the tank valve ON VERY, VERY SLOWLY (Slow motion, slow). Once the valve is fully open, light the burner farthest from the tank first and turn it to high. Does the flame height now, appear to be normal? If so, light the remaining burner(s) the same way. The flame height on all should be the same on the highest setting. If they don't you'll need to replace the grills regulator/hose assembly. You can purchase one at just about any home center or hardware store that sells grills and grill accessories. Just take your old one with you for comparison purposes.

Any or all of the above should solve your problem. Please let me know and if you have any questions, don't fail to ask.

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2 Answers

Grill won't heat up above 200 DEGREES with a nearly full tank


Try replacing the regulator and hose, not very expensive and fairly easy to do. If that doesn't help, let me know.

Jul 11, 2010 | Weber Genesis Silver B Grill

1 Answer

Grill lights but flame is low and goes out if control is moved from high. Burner tube is clean, spider screen is clean, and I have a full tank of LP. Grill is Q series about 1 year old and has been working...


Hello. Are you frustrated because your gas grill doesn't get hot enough lately. The problem you are having indicates that you have to go through a procedure called "RESETTING THE REGULATOR". Follow these easy steps:

1. Turn the burners on for one full minute and then off.

2. Next, remove the regulator and the hose from the tank.

3. Then reconnect the tank to the regulator and hose.

4. And very slowly open the tank.

5. Last step is to fire up the burners and start cooking with you new hot flame.

The problem began the first time you opened the valve on the tank too quickly. In the future, always turn the tank valve on s-l-o-w-l-y to prevent this problem.. Joe

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1 Answer

My burners don't put out out much of a flame. Model CGBD48RSBX. Ten years old. Can I clean them?


Hello. Clean them with a wire brush and a shop vac. And, read on: re you frustrated because your gas grill doesn't get hot enough lately. The problem you are having indicates that you have to go through a procedure called "RESETTING THE REGULATOR". Follow these easy steps:
1. Turn the burners on for one full minute and then off.

2. Next, remove the regulator and the hose from the tank.

3. Then reconnect the tank to the regulator and hose.

4. And very slowly open the tank.

5. Last step is to fire up the burners and start cooking with you new hot flame.

The problem began the first time you opened the valve on the tank too quickly. In the future, always turn the tank valve on s-l-o-w-l-y to prevent this problem.. Joe

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1 Answer

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Shut off the tank and remove it from the grill. open all valves. close all valves. Reconnect tank to cooker and SLOWLY open the valve a hair. Then retry.Something in the dang newer safety tanks cause this phenom.

Mar 22, 2009 | Weber Genesis Silver B Grill

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