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Does your grill or pool heater have a yellow flame instead of blue? 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.
Good luck. Al K
If the tube you're referring to is the burner tube, that is connected to the gas valve/regulator? The hole you're seeing is the the Venturi Valve. It mixes air to gas, which allows it to burn cleanly and have a blue flame, rather than a yellow flame.
Hope this helped you and Happy Grilling!! Thanks for choosing FixYa.
Dennis, it's not the CFM you need to know, it's the water column inch that is required. In this case it's 7 inches. Also, if you're burying this 40' run, you can't use black iron pipe. A less labor intensive and perhaps less expensive way to go is 1/2" Flexible Copper Refrigerant Tubing. It's comes in 50' & 100 ' roles from your local home center. Even if you're not burying the line, it's a better way to go, as you'll have fewer fittings that could be prone to leaking. I
n addition, you'll also need and an inline gas shut off valve at the connection before the grill and a 12' long quick disconnect gas hose, that connects to the copper pipe connection at the shut off valve and then to the grill. This is a code requirement.
Now, with all this said, I hope you have a Genesis S-330 Natural Gas Grill. Because, the Genesis Propane Grills ARE NOT convertible to Natural Gas. And Genesis Natural Grills ARE NOT convertible to Propane.
Hope all this helped you make the right decisions. Have a great day and Happy Grilling!
It sounds like sealant may need to be used on connections. Use appropriate one for gas fittings.
Noting where the leak is occuring is important. Another possibility is the fuel is being somehow "jetted" from a hole or orifice in a burner tube to the area behind the control panel. These are hard to see what happens first when it does happen.
I had a local barbeque grill retailer ( a fireplace and barbeque store which did repairs) install a new one for me. I didn't want to mess with the venturi tubes and the exact length of the openings so it would work. I am glad I did as it works perfectly.
Burner will not light:
Here is a couple things you can check:
1. Gas injector not insert in venturi tube.
2. Clogged gas injector
3. Obstruction in gas line.
4.Spider webs in venturi tubes.
5. Misalignment Of collector box and burner.
7.Check hose to make sure it is not kinked
8.Check Hose to make sure it wasn't chewed by squirrles
9. If it is LP gas, Could be out of gas.
Could be the way the grill was turned on and off, that also can be an issues. In your manual it will tell you how to do it proper, this could make it not light or have a low flame. If there is not hing in your manual, I will be happy to assist you.