If all of the burners won’t light, check the gas supply valve behind stove to make sure it’s on. The gas valve handle should be in-line with the gas line. When you’re sure the gas is on ...
If your oven's igniter doesn't glow hot enough to light the gas from its burner, the oven will not light and you'll likely smell a little gas. Check the igniter coil for any discoloration by ...