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Have problem with flame back in venturi tube - Desa International TT15G Heater

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Instead of paying you guys 20 bucks for problem that probably can't be fixed anyway, I'll just put that money to a new heater, and throw away the old one. Problem fixed!!!!

Posted on Dec 14, 2009

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Posted on Jan 02, 2017

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Low flame on one side


If your grill is older and has seen several seasons check for obstructions elsewhere the venturi is only one place for problems, check for hose kinks loose connections. If this is in a cold weather area, it maybe just low pressure. Also look for collected/ponded water in the burner tubes, especially if the flames are yellow.

Jan 13, 2013 | Broilmaster Premium P4 Grill

1 Answer

The side burner flame is always yellow and does not adjust high to low. Always high & yellow. How do I adjust to get the hot, blue flame


If your propane tank is not just about to run empty, then you can probably thank little spiders.
When a gas burning appliance sits idle for a week or more outdoors, spiders like to build nests in the venturi tubes (that's the tube with the holes in it where the combustion air gets sucked in). This changes the way the combustion air mixes with the gas and causes the gas to not burn completely. The incomplete combustion is not very hot, and so the flame appears yellow. This is not efficient. It wastes gas, is too cool for grilling steak and creates soot residues. This is very common on gas grills (bottled propane or piped natural gas). It also happens to pool heaters.
Fortunately, the fix is easy, and you usually don't need to take anything apart. Get a piece of stiff nylon string from a weed-wacker, about 12 inches long. With the burner cool, push the string into any hole in the venturi tube and spin it by rolling it between your fingers. The spider nests are sticky (made from the same stuff as spider webs) and they usually adhere to the nylon string.
Not sure what the venture tube is? It's going to be between the valve and the burner. The valve shoots a stream of gas into the venture tube through a pinhole nozzle called an "orifice". You can do a Google image search for BURNER VENTURI TUBE to see lots of different types. Every gas burning appliance uses some form of venturi tube.

Aug 17, 2010 | Garden

1 Answer

Why do flames shoot out the venturi tubes and out the front of the bbq control panel after 1 minute of being trned on????


blocked burner , or split burner , gas lighting back to injectors wrong air mix, leak on control panel ,

Jun 10, 2010 | Char-Broil CharBroil Master Flame Gas...

1 Answer

I am uncertain as to why my barbeque smokes black and leaves a soot film on the whole inside of the barbeque and on the meat that I am cooking. It is certainly a cheap model but I replaced the burner and...


Can you see the smoke coming from the tip of the flame itself? Did you not have this problem before you replaced the burners? If yes to both, then the problem is with the venturi tube of the burner not providing enough air. The venturi tube is the part of the tube where the gas jet from the valve first enters it. There are some holes that control the air/gas mix by their configuration and size. Perhaps you have the wrong model replacement burner. The orifice (very small hole) out of which the gas shoots into the venturi, and the venturi tube itself are both designed slightly differently for use with Propane (bottled) or Natural (piped) gas. Perhaps your new burner has an adjustable venturi to allow more air. If so, remove the rocks so that you can see the flame and adjust by trial and error.

Jun 10, 2010 | Garden

1 Answer

Yellow flame


Hello,
You may have a rusted, clogged or damaged burner or venturi tube. With a flashlight, check for spider webs, wasp nests or dirt (mud) dauber nests in the opening of the venturi tube where it connects at each gas valve orifice. Clean it out manually or blow it out with air compressor. Make sure the air adjustment opening (on the end of the burner's venturi tube) has not been changed. If it's closed too much, it will be difficult to light and cause lazy yellow flames. If it's not clogged, the burner may just be old and rusted and the burner holes are not allowing very much gas through anymore. It's also possible the burner has rusted so bad, the burner holes have been enlarged, it is falling apart or has cracks along the burner seams. If so, replace the burner(s) immediately. It is unsafe to use. Your local propane co can usually order the parts you need and some will even do the work, if you are uncomfortable doing it yourself. Bring with you the Make, Model and Serial number of the grill, so they can order the correct parts for your specific grill. Also specify whether it's natural gas2_bing.gif or propane.
Douglas

Jun 06, 2010 | Char-Broil CharBroil Master Flame Gas...

1 Answer

Flame coming back up venturi


check for a blockage in the lines---sometimes spiders will build a cocoon in the tubes.

May 09, 2010 | Pool & Spa

1 Answer

Low flames


The problem may be in your regulator. About five years ago the feds required all grill regulators to have safety features which now often cause the problem you are having.

Make sure your regulator is right side up for starters Then check the venturri tubes to be sure some spider hasnt nested in there. Make sure it is clear.

Here is some additioinal info u may need to read:

Fuel Hose and Regulator: The output of a propane tank is much greater than you need for grilling so the regulator controls the amount of fuel that can flow to your grill. The regulator attaches to the tank by a flexible hose with an O-ring to create an airtight seal. Regulators are preset by the manufacturer and should not be adjusted by you. If you look at your regulator you will notice a small vent hole in the center. Common problems here are clogged vent holes, which can cause irregular fuel flow and can lead to trouble. Usually you can clear it by tapping or blowing into the vent. Other problems are fuel leakage caused by a worn or damaged hose or O-ring. To determine if there is leaking mix dish soap and water in equal parts and coat everything from the tank to the venturi tubes. The tank needs to be connected and on but the control valves off. If you find a leak replace that part. Control Valves: The controls do just that, control the flow of fuel to the burner. Some grills have one control valve and others have several. The valve consists of several components that are specifically designed on a number of factors. You cannot repair a bad control valve and if need be you should replace the whole unit. Before you do, however remove the control valve from your grill and inspect it. Like other parts of your grill, insects love to climb in here and make their homes. At the heart of this is the orifice. The orifice controls the flow of fuel and can become clogged. If it is use a thin wire to clean out. Make sure you put it all back together the way you found it. Without the orifice you cannot control the amount of gas flowing to the burner and run the risk of explosion. Venturi Tubes: The venturi tubes connect the control valve to the burner(s) and mix the fuel with air to provide flame. To mix the air into the fuel there is an open gap in the fuel line here that can easily become obstructed. Insects, especially spiders, love this space and given half a chance will move in as quickly as possible. The best solution for this is to wrap the venturi tubes with an aluminum screen that will not block the airflow but will keep the critters out. Another common problem here is a misalignment of the venturi tubes with the burner. Typically the venturi tubes are simply placed in the fuel line and can get knocked out of place. The venturi tubes typically have adjustable shutters. You may need to adjust these to regulate fuel flow.

May 18, 2009 | Grilling

1 Answer

Gas grill prob.


Barbecue Repair Parts Don't let spiders crawl into your venturis, yearly maintenance part are available. 27897.jpg?qlt=80&cell=325,325&cvt=jpeg If you notice that your Barbecue is getting hard to light or that the flame isn't as strong as it should be, take the time to check and clean the VENTURIS. 27898.jpg?qlt=80&cell=325,325&cvt=jpeg In some areas of the country, spiders or small inserts have been known to create "flashback" problems. The spiders spin webs, build nests, and lay eggs in the BARBECUE VENTURI TUBE (s)obstructing the flow of gas to the BURNER. The backed-up gas can ignite in the venturis behind the control panel. This is known as a flashback, and it can damage your Barbecue and even cause injury. To prevent flashbacks and ensure good performance the BARBECUE BURNER and VENTURI assembly should be removed from the grill and cleaned before use whenever the BARBECUE has been idle for an extended period of time.

Also, when you lite the BBQ, make sure that you turn the gas on at the tank, wait a couple of minutes and then turn the knob on and light the burner. This is to make sure that the pressure is regulated and sufficient prior to lighting.

Hope this helps!

Sep 01, 2008 | Grilling

1 Answer

Bunners do not get hot


Barbecue Repair Parts Don't let spiders crawl into your venturis, yearly maintenance part are available. 27897.jpg?qlt=80&cell=325,325&cvt=jpeg If you notice that your Barbecue is getting hard to light or that the flame isn't as strong as it should be, take the time to check and clean the VENTURIS. 27898.jpg?qlt=80&cell=325,325&cvt=jpeg In some areas of the country, spiders or small inserts have been known to create "flashback" problems. The spiders spin webs, build nests, and lay eggs in the BARBECUE VENTURI TUBE (s)obstructing the flow of gas to the BURNER. The backed-up gas can ignite in the venturis behind the control panel. This is known as a flashback, and it can damage your Barbecue and even cause injury. To prevent flashbacks and ensure good performance the BARBECUE BURNER and VENTURI assembly should be removed from the grill and cleaned before use whenever the BARBECUE has been idle for an extended period of time.

Hope this helps!

Apr 20, 2008 | Coleman LG40811E Grill

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