If your using a 20lb grill tank, that may be where the problem lies. All 20lb LP refillable tanks are now equipped with an OPD Valve. It's a safety feature prevents over filling of the tank. However, it can cause problems for gas grills if not turned on properly.
If this is what you're using here's what you need to do:
- Turn off the tank and disconnect the grill hose from it.
- Wait 5 minutes and reconnect the hose to the tank.
- Very, very slowly turn the tank valve on. When I say slowly, I mean VERY slowly.
- Once the valve is fully open, light each burner one at a time and turn them all up to the highest setting.
Are all the burners, burning properly? If so, you just solved the problem. Remember to always turn the tank valve very, very slowly when turning it on.
If you're not using a propane grill tank and your supply is hard piped from your household supply of propane gas. You may very well have a pressure and gas volume problem, depending on the length & size of the run gas piping. This will have to be determined by your propane provider. But, I can tell you this, if the gas piping is not at least 1/2" OD, that's were your problem lies.
If you're using Natural Gas from your household supply. Was the grill properly converted to operate on Natural gas? If it wasn't, that definitely is the problem.
Hope this helps you solve your problem. "Happy Grilling."
OPD valves have a small brass ring located in the female
fitting on the LP tank. Over time this ring can work loose and then it
does not allow the male fitting to fully depress the OPD valve thus
reducing your gas flow
If you have replaced your regulator and the issue is persisting, it may be the OPD (overfilling protection device) valve on the tank is shutting down causing a very low flame to come out of the burners. If this occurs, make sure all your grill knobs are in the off position. Then make sure you turn the valve on the tank off. Unscrew your regulator off the tank. Open all the knobs to let any remaining gas bleed from the gas line. Let it sit open for a minute or two. Turn the knobs back to the off position. Reconnect your regulator to the grill tank. Crack the valve knob to allow the gas line to pressurize. Then slowly open the valve more. This should solve your problem.
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