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Poor gas flow

Grill ignites - rather calmly - then back burner slowly ignites. Middle burner does not fully ignite. Gas flow safety regulator trips.
I have already replaced regulator.
Do I need to disassemble the gas line/burners to see if there is some type of blockage?

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  • 3 more comments 
  • Brian T Apr 14, 2008

    My grill has been outside all winter. When the gas flow was feeble, a new gas tank didn't solve the problem. I'm going to talk to Home Depot, where I bought the grill, but I'd be surprised if they can help. Is there some kind of seasonal servicing I should apply?

    Brian Taylor

  • carl l b May 08, 2008

    When grill ignites, partial flame only along burner line and very low flame.

  • Anonymous Nov 09, 2008

    low flame. Weber blamed it on some leak prevention device but all the things they suggested to do didn't work.

  • iangale May 09, 2009

    I am also having low flame and no flame on the part of the burner. iangale@prodigy.net

  • briggzeeeb May 11, 2010

    I have the same question. Only half of the burner ignites and I am in need of instructions on how to clean it out.

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6 Suggested Answers

SOURCE: Weber Summit Grill Igniters

I contacted Weber and they sent me a complete igniter system. I will have to install it.

Posted on Oct 31, 2008

  • 139 Answers

SOURCE: Weber - Igniting the three grill burners (front, middle, rear)

it need a clean

Posted on Apr 28, 2009

  • 492 Answers

SOURCE: Find Weber gas grill regulator

Try Home Depot.

Posted on May 06, 2009

  • 1 Answer

SOURCE: Regulator doesn't allow gas to flow to grill

Shut off the gas at the tank and disconnect everything.

Unscrew the plastic cap on the regulator. Inside is a flat screw top that has a single slot or an X-shaped slot. This is the pressure adjustment. It controls the diaphragm that regulates gas flow.

Note where it's set. Use a Sharpie to mark the adjuster on its edge (place a dot there), and make a corresponding mark on the threads next to it.

Next, use a large screwdriver or a coin to spin the adjuster counterclockwise three or four times. Pay attention to the number of turns. Now, screw it back in (clockwise) the exact same number of turns, stopping at the index mark you made.

Next, turn the adjuster two turns clockwise, followed by two turns counterclockwise. The idea is to end up where it was originally set. This action unsticks the regulator's valve seat. Done.

Put the cap back on, hook it all up, open the tank valve, and make fire.

Oongawa!


-Peegoo

Posted on Jun 27, 2009

  • 2 Answers

SOURCE: My grill does not exceed 300 degrees

Bypass valve need reset. All grills made after 1996 have this valve.

  • Close the LP tank valve
  • Turn all burner control knobs to the OFF position
  • Open the grill lid
  • Turn the LP tank valve until it is completely open
  • Wait 90 seconds
  • Turn the front burner to the HI/Start position
  • Press the igniter until the burner is lit.
  • Turn remaining burners to High
  • Close the lid.
  • The grill should preheat to 500-550 degrees in 10-15 minutes
I called Weber and a rep walk me through it.

Posted on Aug 31, 2009

  • 34 Answers

SOURCE: need a propane regulator for my road trip grill

Try their web site and you chould be able to get one from there.

Posted on Apr 17, 2010

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1 Answer

When I try to light my brand new Q300, it won't ignite. I can hear that the tank is on and gas is being sent to the grill. However, it doesn't light. When I shut the grill off and the gas tank...


What you have is delayed ignition. It's being caused by the gas regulator. It is solvable, though.

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

Wait 5 minutes and reconnect the hose to the tank.

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

Once the valve is fully open, light 1 burner and turn it to HIGH. Did the burner light and does th eflame height look correct? If so, light the remaining burner the identical same way. Now, to both flame heights look correct? If so, you solved the problem. Remember to always open the tank valve Very, Very Slowly. And always light the burners with the Lid/Hood Open.

If the above did not solve the problem, you will need to replace the Hose/Regulator Assembly. Since your grill is brand new, the Hose/Regulator Assembly will be covered under Warranty. Have your Proof of Purchase handy and call Weber 1-800-446-1071. Also, if you haven't done so already, register your grill before calling http://help.weber.com/register/ even if you don't need a new Hose/Regulator Assembly.

Hope this helped you troubleshoot & solve the problem.

Jul 06, 2011 | Weber Q300 Grill

2 Answers

Grill is one old and won't light. There is no gas coming from the tank to the grill. Is it the regulator?


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!!!

Jul 27, 2010 | Weber Q Grill

1 Answer

Second and third burner burns with a low flame. Burner closest to gas supply works as usual.


This problem can be caused by a number of things. Is this a new grill? If not, is this a new problem?

First -Check to see if the fuel hose is bent or kinked.
• Make sure the grill area is clear of dust.
• Make sure the burner and orifice are clean.
• Check for spiders and insects.
• The regulator has a safety device that restricts the flow of gas in the event of a leak. This safety device can be triggered without a gas leak. To reset the safety device, turn all burners "OFF" and close the Liquid Propane cylinder valve. Disconnect the regulator from the Liquid Propane cylinder and wait 1 minute. Reconnect the regulator to the Liquid Propane cylinder and slowly open the valve until the valve is fully open. Light all burners and observe the temperature.

Sep 04, 2009 | Vermont Casting Signature VCS3507N ...

1 Answer

My grill does not come up to the proper temperature. There is nothing that seems to restrict the gas flow. There is a sputter sounds so I think the gas feed is restricted. Can you help or suggest what may...


Check to see if the fuel hose is bent or kinked.
• Make sure the grill area is clear of dust.
• Make sure the burner and orifice are clean.
• Check for spiders and insects.
• The regulator has a safety device that restricts the flow of gas in the event of a leak. This safety device can be triggered without a gas leak. To reset the safety device, turn all burners "OFF" and close the Liquid Propane cylinder valve. Disconnect the regulator from the Liquid Propane cylinder and wait 1 minute. Reconnect the regulator to the Liquid Propane cylinder and slowly open the valve until the valve is fully open. Light all burners and observe the temperature.

Sep 03, 2009 | Weber Grills & Smokers

1 Answer

Gas flow


Your regulater connected on tank has a shut down safety inside of it. disconnect tank hookup, then reconnect, always open tank valve slowely when you open to fast regulator thinks there is a leak and starts shutting down valve to slow leak. Opening slowely will solve your problem.

Aug 17, 2009 | Weber Genesis Silver B Grill

1 Answer

Problem with gas getting to the front burner


Follow manufacturer's recommendation in resetting the excess flow safety device....(Turn burners and LP cylinder off...Disconnect regulator on cylinder. Turn both knobs to high for at least one minute...Then turn them to off...reconnect the regulator to the LP tank...Turn LP valve VERY slowly (30 seconds) until fully opened..then start the grill in the usual manner. ALWAYS TURN THE LP TANK OFF WHEN DONE USING THE GRILL....

Jul 04, 2009 | Weber Genesis Silver B Grill

1 Answer

My weber gas grill will not heat up past 300F


Hi John,

I just experienced the same exact problem ! I just bought a brand new Weber E-310 a 3 burner grill.
After I seasoned it up with cooking oil,I turned all the burners to high, opened the tank and clicked electrnic button several times , the grill was on then I went inside, I came out about an half-hour later and it was saying around 275 degrees..
I looked into my manual and there is a gas limit control valve that shuts down gas flow, when it thinks there is too much gas flow.

Sloution;
Turn the propane gas knob to off
Turn the gas grill knobs to Off.
Click the igniter several times to clear out any gas.
Then unscrew the regulator from the tank,( I then blew into the tank hole and regulator),
Screw back on the regulator to the propane tank.
I then clicked igniter again couple of times.
Now open your propane tank.
Then turn on front burner while clicking igniter, this will lite 1st burner.
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!!

The problem was turning the gas grill knobs on first then opening the tank then lighting...
You have to open propane tank with knobs off, THEN AS SOON AS YOU TURN ON 1ST KNOB, YOU MUST IGNITE ...


Mar 21, 2009 | Thermos Stainless Steel Gas Grill

1 Answer

Troubleshooting amana gas grill


From a tag that came with the grill -

"To ensure proper gas flow, all of the burner control valves MUST be off before opening the LP cas cylinder valve.

When turning on the LP gas cylinder valve, make sure to open the valve SLOWLY two complete turns to ensure proper gas flow.

All LP tanks now come equipped with a leak detection device internal to the tank, when gas is allowed to escape rapidly it will restrict the gas supply to the appliance. Opening the valve rapidly may simulate a gas leak, causing the safety device to activate, restricting gas flow and causing low flames or poor ignition.

Opening the valve slowly will insure this safety feature is not falsely triggered."

I would guess you triggered the tank failsafe inadvertently.

Jan 01, 2009 | Amana 5939 Grill

1 Answer

My baby q is sick


Since 1995 all regulators (the part that attaches to the gas tank to regulate the flow of gas) have included a safety device that restricts the flow of gas in the event of a gas leak. This safety device can be inadvertently activated in two ways, putting the grill into what is commonly called “bypass”. The first way for the device to be activated is to leave one or more burner control knobs in the “ON” position when the LP cylinder valve is opened. The second is not to wait long enough to “start” the grill after opening the LP cylinder valve. The safety device in the regulator is activated each time that the LP cylinder valve is opened. The device resets itself when the gas pressure equalizes between the closed burner control valve and the regulator, through the hose. If a burner control knob is turned on before the gas pressure can equalize, the device will remain in “bypass”. The length of time necessary to wait to “start” the grill after turning on the LP cylinder valve is dependent on the length of the hose and outside air temperature. It is always good practice to wait a few seconds after opening the LP cylinder valve before turning on the burner control knob to start the grill.
Keep in mind that the safety device reacts to a gas leak. If a grill is in bypass, the gas connections and hose should be tested for leaks with a soap and water solution.
If the grill is in bypass, after checking for gas leaks do the following to get the grill out of bypass:
To reset the gas safety device:
Open the barbecue lid.
1. Close the LP tank valve.
2. Turn your burner control knob to the OFF position.
3. Wait at least 5 minutes if the barbecue had been lit, then
4. Disconnect the hose from the LP tank.
5. Turn your burner control knob to the HIGH position.
6. Wait at least 2 minutes, and then turn the burner control knob to the OFF position.
7. Re-connect the hose to the LP tank.
Re-lighting the barbecue:
1. Open the barbecue lid.
2. SLOWLY open the LP tank valve all the way and wait 1 minute.
3. With the lid open, turn the burner control knob to the HIGH position.
4. Ignite the grill by pushing the crossover ignition button.
5. Close the barbecue lid.
6. The barbecue should reach 500 to 550 degrees in 10-15 minutes.
When you are done grilling:
1. Turn all burner control knobs to the OFF position
2. Turn off the LP tank valve last.
* Always follow the re-lighting instructions whenever you use the adapter hose and larger tank.

Feb 16, 2008 | Weber Q Grill

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