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Low gas flow into burners despite full propane tank. Any ideas? I have cleaned the burners and the orifice openings, but the gas grill acted like it has low flow of propane. Recently I found that if i lit the 3rd burner, the other two would either shut off or diminish the flame significantly. I have two different propane bottles witht he same results...I wonder if the regulator has gone bad. thanks

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The regulator has a hole in it. For gods sake be careful when you are playing around with it, because LPG is heavier than air, we had a leak in our cellar and the fire brigade actually carried it out in buckets! NO joke.They just sprayed a mist of dye over the gas and you could actually see it going down. The gas provider may have come and empty your gas bunker if you have one, or open it and let it dissipate in the open air. Even if you only have a cill on the step of 3", sweep it out like its water. Then change the regulator. Be careful, use pleanty of ptfe tape on the ouutlet side of the regulator to eliminate the risk of further leaks.

Posted on Aug 02, 2009

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We replaced the regulator and the grill still does not have big flame always seem to be on low despite knob adjustment


Turn off propane. Disconnect propane tank from barbecue. Open burner valves for about 20 seconds. Close valves. Reattach propane tank. Slowly open propane tank valve. Turn on burner and ignite

Jul 30, 2014 | KitchenAid Superba KFRS271TSS Stainless...

2 Answers

I have a Nexgrill 720-0073 stainless grill. The grill doesn't get very hot - around 200-250 and the flame level is low (BOTH sides). Tried a new tank of propane - same thing. I cleaned the burners late...


Hi and welcome to FixYa. I am Kelly.

Things that cause low flames

1. LPG Tank regulator internally corroded and diaphram can not open enough to supply the correct amount of pressure. (replacement regulator required) If you do an tapping on the regulator disconnect it from the tank and if you do strike it... use WOOD! Tap from bottom and then from top.... several times. When your done... do it one more time. This may correct the problem for a short period but if it is corroded internally the problem will repeat in as little as a month.

2. The orifice holes are restricted due to spider webs insects ets. (Remove burner and Physically clean the orifice mounted on the back of the gas valve.) Worst case the orifice has to be removed and the mini orifice hole cleaned.

3. Clogged internal burner air / gas passage (remove again and clean) Use a tooth pick to clean main burner holes. Use spot tie or something long and skinny to probe into the burner air / gas passage. (Wire coat hanger works too)

4. The burner gas valves on the stem nut side are coated with grease not allowing full movement of the valve stem inside the gas valve. (remove and clean with engine degreaser)

Thanks for choosing FixYa.

Kelly

Sep 07, 2010 | Nexgrill 720-0234 (LP)

1 Answer

I have a full propane tank. I bbq'd about 3 weeks ago, same full bottle. Grill will not light. Good spark at ignitor. Used lighter and lit for a few seconds with low flame on high. No other burners will...


Hello,
You may have turned the gas tank valve on too fast. Turn it back off, disconnect it and reconnect it. Then very slowly turn the valve back on. Light one burner at a time and turn to low before lighting the next. If you are hearing and smelling gas with the tank on but all grill knobs off, don't use the grill. You may have a leaking grill valve, regulator or hose. If you are only smelling gas with the knobs on, it's possible you have a clogged burner or orifice from bug nests, spiderwebs, etc and need to clean it out first. Hope this helps. Douglas

Jun 13, 2010 | Brinkmann Charmglow Stainless Steel LP...

1 Answer

Gas not coming out enough; flame not catching on to other burners


Problem: Low flames on grill, tank is full.

Cause: These newer tanks have a device inside that limits the flow of gas to prevent leaking or accidental discharge of gas from the cylinder. The leak detector mechanism inside the tank shuts off the gas whenever the valve is opened rapidly.

Solution:
Close the tank valve and remove the tank. Check the gas line for ANY object that could cause blockage. Open all valves on the grill to eliminate any pressure whatsoever. Close all valves and reattach tank. SLOWLY open the tank not over 2 turns. Check for leaks. I just open my tank a tiny bit but that is just me.

This late model gas grill service manual has more details on page 13.

Apr 28, 2010 | Weber Genesis Silver A Grill

1 Answer

Flame is low when turned on highest setting


There are a few causes for that.

1. You are low on propane.
2. Your propane tank is overfilled, and the overfill protection device is restricting gas flow.
3. You have turned off your grill using the propane tank instead of the control valves on the grill. This may also cause the overfill protection device to engage. You can reset this by turning off your control valves on the grill, turn off the propane tank, unscrew the hose from the propane tank, then put the hose back on securely, turn on the propane tank and turn on the control valves.
4. Your burners are very rusty and may be clogged. Clean or replace the burners.

Mar 03, 2010 | Sunbeam Grilling

1 Answer

Low flow of gas to 1st burner, if second burner is turned on flame goes out. bottle full


First disconnect tank. Hook back up and open very slowly. These new valves on tanks have a shut down if you open valve to fast, causing tank valve to think it is leaking, it slows down flow of propane. Always open tank valve slow when turning on grill. If this does not solve problem then regulator is going bad and need to be replaced.

Feb 08, 2010 | Weber Genesis Silver B Grill

2 Answers

Genesis s310 stainless grill. Does not fully light.


Regulator is not bad, as I stated before new valves are designed to reduce gas flow if valve is opened to fast. This is so if grill catches on fire, the tank will shut itself off, thus propane will stop flowing causing fire to extinguish itself.

Dec 28, 2009 | Weber Genesis E-310 Gas 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

Low flame even on high


Check the propane regulator if equipped
Check the gas orifices - they may be carboned up and require cleaning
Check the venturi tubes (the tubes that go over the gas jets) - they may have spider webs or other insect cocoons in them
Make sure the gas valves work correctly (high/low)
You mentioned that you replaced the burners - are they correct for the unit and installed ok?
Make sure the gas valve on the propane tank is opened all the way

Mar 22, 2009 | Grilling

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

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