Always open the grill lid first before you light the propane .
You’re looking to get that really good sear with a high temperature but your grill is sputtering out a weak little flame. What gives?
The most common reason behind a low flame is that the overpressure device on your grill’s regulator has been tripped. The regulator attaches to the gas tank and restricts gas flow in the event of a gas leak. It can be accidentally tripped when you turn the control knobs on your grill on before you turn on the liquid propane tank valve.
If the gas regulator is tripped, your grill will only reach temperatures between 250 and 300 degrees Fahrenheit, even with all burners on the high setting.
In this case, all you need to do is reset of the gas regulator. Five easy steps and you’re on your way.
Make sure all knobs are in the OFF position on the front control panel.
Turn off the propane tank knob.
Disconnect the regulator from the propane tank and wait 30 seconds.
Reconnect the regulator to the propane tank and slowly open the propane tank valve knob all the way.