What Is Wrong With My Gas Grill?
Its a weber model silver B. Burners are new. Ignites fine heats up great with a high flame. Half way through cooking it starts to cool down. Flame dwindles no matter how high you have it set. Flame does not go out but dwindles. After you leave it off for a few days it cranks right back up but does the same thing half way through cooking. Its a basic gas grill, no frills. Oh and I checked the lines no spiders it has a screen on the valve assembly.
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i had the same problem with my gas grill and it was just a faulty regulator.
http://www.weber.com
its faulty
I agree with the other posts but in case it is natural gas, try calling Weber.
I have one, great grills.
It’s probably the regulator on the bottle.
You mention that you are heating up with a “high flame.”. Your regulator is probably inside a cabinet. You are freezing the regulator. You will probably notice that this happens more rapidly when the bottle is full than when it is half full.
The problem is that propane is stored as a liquid. When it evaporates, it cools the gaseous propane which in turn cools the liquid propane. The cooling of the gaseous propane causes condensation to form in your regulator which decreases the size of the aperture. It will freeze solid. The cooling of the liquid propane does the same thing. It freezes the surface of the liquid propane. The propane will still evaporate, it just can’t do it fast enough to sustain a decent fire.
Solution, heat the regulator with a heating pad of some sort that is designed for this purpose. This is not recommended as it is simply not cost effective. Remove the bottle from that nice shiny stainless steel cabinet that it sits in. That pretty cabinet that reflects heat away from the bottle, helping it to freeze. Paint the cabinet doors if its facing the sun. This will help, but will not solve the proble.
If its natural gas, I’m an @ss. Ignore me.
God Bless
This may be the solution. Before you turn on the knobs to the ignite setting, make sure you already have the propane knob turned on. I had a similiar problem and it took the whole summer to figure it out.