Why aren’t all my gas grill burners lit?
It may be a damaged or missing crossover tube. Many gas grills have several burner tubes but an electrode at only one burner. So only that one burner tube would light when the gas is turned on and the spark has ignited the gas. The function of the crossover tube is to serve as a pathway for the flame to travel through to ignite the burners that don’t have their own electrode for ignition.
If your grill has several burner tubes but only one of them is lighting and you find yourself lighting the remaining tubes yourself, check to see if there are crossover tubes that have big holes in them or may be missing.
Please note: Not all gas grills use this style of crossover tube. Some gas grills have one long continuous crossover channel, that each burner tube is connected to.
This is a Universal Adjustable Crossover Tube that fits many make and model gas grills. When determining if this is appropriate for your grill take note of the distance between burner tubes. This part will bridge a distance between 4-1/2″ to 7-1/2″ when measuring from bolt-hole center to bolt-hole center.