Gas range won't ignite

My GE gas range has one burner that won’t ignite. There is no click when I depress the right front knob. If I turn the knob to on, it will light when another burner is turned on, so it’s getting gas. What part do I need to replace and how do you go about it? The unit seems virtually sealed and difficult to access.

HI,
I HAVE A MAGIC CHEF WALL OVEN ,I WOULD LIKE TO KNOW IF ITS HEATED
BY A THRMOSTAT SYSTEM .:confused:

A model number may help other help you.

The temperature in the oven will either be regulated by a thermostat or an oven sensor and control board.