|If your Range or Cook Top Surface light is stuck On/OFFCheck the Following
This is the switch that controls each burner. The switch is easy to check and they do fail on occassion. If you have a bad switch it can also cause the surface light to stay on/off all the time, make your burner go out of control, or not work at all. The switch is inexpensive and easy to replace. Follow the link for testing this type of switch.
If No switch is found defective check the bulb connection, wiring. Look for shorts and replace wiring section.